We must also not forget people like you Keith! Always giving back, teaching and donating your time and knowledge to make us all better tecnicians. You are our hero!!!
I just worked on a 2004 2500 6.0 with p0171 p0174 p0456and p0300. Lean on both banks with a random misfire and small evap leak. Couldn't see any obvious vacuum leaks to create a lean condition so hooked up my fuel pressure gauge as I had a suspicion the pump was bad because of how loud the fuel pump was whining when the ignition was cycled on. I had 55psi of fuel pressure then burped the throttle and it would drop to 20psi. So simple diagnosis the weak and noisey fuel pump was creating a lean condition and random misfires. Dropped the fuel tank and Replaced the fuel pump (which the top was rotted out causing my small evap leak) and cleared the codes then went on a test drive all was good until the following day I took another test drive to make sure all monitors were set and the CEL started flashing, the p0300 code returned but no other codes. Monitored my misfires and they only showed up around 2000 rpm none at idle. Ended up switching some plugs around and nothing changed as far as which cylinders were misfiring. My fuel trims were all good within +/- 5% on both banks. I ended up doing a crankshaft position sensor relearn with my scanner and went back to monitoring the misfires at 2000 rpm and they were gone. So the point of that long story was after I replaced the fuel pump which corrected my lean misfires but yet the truck still saw random cylinder misfires even though the engine ran smooth and was not actually misfiring the crank sensor was just strangely reporting them. Relearned the CKP and now it's fine no more misfires showing up on the scanner at 2000 rpm. I know you have to re learn them after replacement but the sensor wasn't new so not sure why it had to be relearned. Maybe this will help somebody that's trying to diagnose misfires that don't even exist.
Your a good person Keith much respect. I have a friend Vietnam Vet. Agent Orange casualty. Just has his G.I. disability. I do all the diagnose and wrench spinning on his 99 Ranger no charge. His Ranger is to the point where the frame rust not safe. He really can't afford a car payment. He needs a vehicle to visit his autistic son who is in a home. I am debating trying to get a bunch of us together chip in and get a cheap craigslist car. Even if it needs an engine as long as it's solid. I would do the engine swap. We need to respect the first responders and those who served this country to keep us safe. So once again much respect. (BTW this is no way a solicitation for money) I just hope it encourages more people like you to help even if it is just to offer them a ride somewhere.
Awesome diag, Keith, and kudos for giving back! Physical limitations kept me from military and civil service, but I'm proud to be able to serve those that serve their country and community, Police, Fire, EMT and Military alike!
All the people from 911 suffered in many ways. A friend of mine here in Toronto had a business in the buildings and lost her employees. She was on her way there. So sad for everyone! Great you are helping him out!!!
Nicely done Keith! Clear flood and listening to the cranking cadence is quickly done on most all vehicles to help verify mechanical faults.I sure like that Farsight tablet.
Which vehicles don't have clear flood mode? And is there a way to find out besides trial and error and possibly revving it's too too high of an RPM. Been there done that!
Great video thanks brother. I respect everyone of the first responders and our military people. 9/11 I was there really early Saturday morning around 2 am. We had around 12 loads of crane parts to get there ASAP. I will never forget. That is really good the test you ran to pinpoint the problem. Keep up the great work see you in the next video thanks again brother. 12 of around 42 loads the operator has lung problems also. I really have a lot of respect for each and every one of them.
Enjoyed the diagnosis. It's satisfying when a cause can be identified. If after all the engine data comes back normal, I've found the a crankshaft variation relearn will often address a P0300 on a GM small block. Thanks Keith and thanks to all the people that put themselves in harms way to protect us.
As always great video Keith. Great diagnostic process. It’s unfortunate so many people have been affected by 9/11 & some people seem to have forgotten already.
God-bless you Keith! Super valuable to have confirmation on these GM Injectors that are often tough to pinpoint when they only differ at times 1-2 or if you're lucky 3 psi on a drop test! I've been recommending all 8 whenever I have ruled out everything else that can cause the lean condition, but it's difficult to catch at times on the drop test, heat, several tests, IMHO, seems to be the key if you're trying to catch it, scope loses in that aspect, because it can only show so much electrically, it cannot capture flow rate! Loved this video, you're on it man! Anyways, loved your shout out to local civil servants and I appreciate your time in helping determine faulty injection problems on GM's-super valuable-more than most realize!
I heard of a tsb where dirt sediments clog up certain injectors, not sure if it applies to this vehicle 🤔 nicely done Keith! Much respect for all 9/11 responders.
Very good video. I am glad someone asked about the "cut off number" on fuel trims where you decide that it is a fuel issue. Good stuff, another refresher on why you should always use fuel trims in misfire diagnosis, keep up the good work!
No decent person would disrespect a fireman and I'm pretty sure everyone watching this channel is tone deaf to door chimes. Lol great breakdown! Thank you for taking time out of your day to better our knowledge base. It's appreciated!
Monster truck huh? Nice! I love working on peoples toys from time to time. I have a 03 Cobra with a Whipple at the shop now that’s I’m putting a Mcleod dual clutch in. The guy who owns it works out of town and for Father’s Day his son installed dual GT fuel pumps as a surprise but didn’t know that you need to run a modified FPDM or dual FPDMs with that setup. When I get done with the clutch I’m going to have to wire all of that up as well as require his Kenne Bell boost a pump before the fpdm since someone wired it in after the module. It’s a nice little project and a welcome change of pace. Plus, he trusts me with his cars so he told me to take it out and rip it (his words not mine 😂) when I’m done to make sure everything is running right.
Had the same thing the other day but 2002 gmc. The filler neck rotted out and had rust in the tank. Half the injectors had clogged. The fuel numbers differed across-the-board Thanks for sharing
Great video. Its nice that GM gives you lots of good tests that you can use. much respect to all Fire and Police departments. Difficult and often under appreciated lines of work.
Good to have that tool I. Just can't afford it tho I've been able to get by with what tools I do have to keep our vehicles running descent enough to stay on the road when needed but now I'm back to the PO300 again after 4 years with over 250.000 miles on our truck.
great stuff thanks. did it similar on93 vette injectors plugged.usued poewr probe to fire them off .sacn tool that would measure that would be cool thanks for sharing and helping 1st responders.and everybody else! stay cool.hydrate!
I’m considering buying an express 3500 and the seller has been open and honest saying there is a “tick” at low speeds and this misfire code. Said he had compression tested and it was 150 said new coils and new plugs, fuel pressure at 60psi. I think I’ll need a mechanic like this to come with me and check it out
Help me understand please. You said 15% fuel trim points you in the direction of an injector problem, but if it were a spark problem, wouldn’t a similar amount of unburned O2 end up in the exhaust and cause similar fuel trims? Thanks Keith.
Great video Keith!! It would be great if our scan tools would allow you to connect a pressure transducer to the fuel system on vehicles not equipped with a rail sensor. The you could display and save the test results on the scan tool.
Hey KDF, you guys must have different gravity out there in New York. I can NOT balance ANY tool of any sort in the engine bay, or windshield, or cowl, out here in Maui.
That's awesome Keith! Thank you for being such a good role model! Thank you to all of our emergency responders that run head first into the battle of unknown. They are the true hero's! Thumbs up my friend!
Very nice of you Keith to offer your service for free to help our dedicated servants who serve our communities in this great country. Whenever I have the chance, I support these patrons also. Great info and well explained! Just one question on the injectors. Do you find those cleaners which hook up to the fuel rail effective in cleaning restrictive injectors? Or it better to just replace them as you mentioned in the video. It’s going to be a hot weekend so be careful if you’re out there working. 😀👍
Hear, Hear, Keith! Love the folks that step up to the plate in a BIG way, putting their lives on the line for the rest of us. God bless 'em all! Question for you, if you happen to see this - will that test show a leaky injector too? I suspect my Silverado has a few leakers due to the dismal mileage and negative fuel trims I've been seeing for quite a few years now. Great stuff as always, brother. THANK YOU!
Wow!! Can’t thank you enough for sharing of your time and talents. Always great videos Keith. Learn a great deal. What tablet do you use with your Pico scope??
Keith. A quick question. How did you determine whether it's injection or ignition that causes the high fuel trim? They both would make it lean right? Would you say if the total fuel trim is under 10 is more of ignition problem and above 10 is more of injection problem?
Great question !! I was hoping it would stir in someone 😉. I would say more like 5 on the ft . If one side were at 5 and the other at 0 it would be something I would test further. But at 15 its screaming a fueling problem to me .
BG210 with a injector canister cleaner may do the trick to that injector/injectors. It’s possible the oring in that injector is bad and the others may follow. Wouldn’t be a bad idea to get new ones. Thanks to all the brave that serves our country.
Symmetry is the goal. Even if 8 injectors were slightly restricted at once you would be dealing with fuel trim issues not as likely to be a misfire. However only one or two restricted and the fuel correction for that bank will struggle to correct well enough and misfires will become evident. Hope that makes sense
Screw the police, but the firefighters are good. You move too fast when explaining or you just don't show enough at all but I guess it's at least good to see data
@@NewLevelAuto oh man I would love that. I am in NYC, i have this P0300 on my 2010 camaro ss. Prior mechanic replaced all 8 spark plugs and wires, 2 coil packs, 3 fuel injectors, and 1 o2 b1s1 sensor. I need a mechanic to properly diagnose the true cause of the p0300. If you have someone in NY or NJ plz let me know!
If it was ignition misfire what would the fuel trim long/short generally be? Also, your videos always make me miss visiting NY idk why lol. Must be your authenticity.
It seems all the people who have injector, catalytic converter and fuel pump problems run regular 87 octane gas. I worked in a 4 shop 7 yrs straight and questioned customers when doing these repairs. I always ran 89 in winter spring fall and 91 in summer
Keith if I had the same issue on a vehicle but the trims were rich , would an injector that dropped more pressure during balance test be the faulty one? I get in your case you had a lean issue with a restricted injector. thanks it was just a thought
So a p0300 because of only 1 injector on 6? I'm fighting a p0300 with heavy misfire on cylinder 8 and some on 7 as well as some scattered around other cylinders. Everything new oem plugs wires even swapped coils and injectors. 07 4.8l Silverado any advice? Compression all 150psi except 7 and they are 127 and 122 respectively. Fuel trims are pretty normal truck does not have any bad symptoms doesn't shake or smoke just a bit short on top end speed.
Did I get this right? You had the injector and the coil on the same channel? How did you do this? You had a spot where both wires were close enough together that you were able to put both trough your amp clamp loop? That's kind of neat!
DID AN INJECTOR DROP TEST ON A 2000 NISSAN MAXIMUM BUT HAD TO BUY A OTC ELECTRONIC FUEL INJECTOR TESTER PART NUMBER 3398 BECAUSE NUN OF MY SCANTOOLS HAD THE CAPABILITY . THE TOOL WORKED BUT THE INJECTORS WHERE NOT MY PROBLEM MY PROBLEM WAS A POWER LOSS ALL OF A SUDDEN THANK YOU SIR FOR YOUR TIME .
I am overseas with our armed forces and I want to say thank you very much for your nice words and your great work.
"Fuel Trims should be part of your misfire diagnosis" Love it! trying to get more techs to pay attention!
"You can lead the horse to water..."
We must also not forget people like you Keith! Always giving back, teaching and donating your time and knowledge to make us all better tecnicians. You are our hero!!!
Touched a soft spot man. Tell that fireman thanks from NJ! Great diag Keith!
out where i'm at 90% of firefighters are volunteers. they really are a special breed
I just worked on a 2004 2500 6.0 with p0171 p0174 p0456and p0300. Lean on both banks with a random misfire and small evap leak. Couldn't see any obvious vacuum leaks to create a lean condition so hooked up my fuel pressure gauge as I had a suspicion the pump was bad because of how loud the fuel pump was whining when the ignition was cycled on. I had 55psi of fuel pressure then burped the throttle and it would drop to 20psi. So simple diagnosis the weak and noisey fuel pump was creating a lean condition and random misfires. Dropped the fuel tank and Replaced the fuel pump (which the top was rotted out causing my small evap leak) and cleared the codes then went on a test drive all was good until the following day I took another test drive to make sure all monitors were set and the CEL started flashing, the p0300 code returned but no other codes. Monitored my misfires and they only showed up around 2000 rpm none at idle. Ended up switching some plugs around and nothing changed as far as which cylinders were misfiring. My fuel trims were all good within +/- 5% on both banks. I ended up doing a crankshaft position sensor relearn with my scanner and went back to monitoring the misfires at 2000 rpm and they were gone. So the point of that long story was after I replaced the fuel pump which corrected my lean misfires but yet the truck still saw random cylinder misfires even though the engine ran smooth and was not actually misfiring the crank sensor was just strangely reporting them. Relearned the CKP and now it's fine no more misfires showing up on the scanner at 2000 rpm. I know you have to re learn them after replacement but the sensor wasn't new so not sure why it had to be relearned. Maybe this will help somebody that's trying to diagnose misfires that don't even exist.
Your a good person Keith much respect. I have a friend Vietnam Vet. Agent Orange casualty. Just has his G.I. disability. I do all the diagnose and wrench spinning on his 99 Ranger no charge. His Ranger is to the point where the frame rust not safe. He really can't afford a car payment. He needs a vehicle to visit his autistic son who is in a home. I am debating trying to get a bunch of us together chip in and get a cheap craigslist car. Even if it needs an engine as long as it's solid. I would do the engine swap. We need to respect the first responders and those who served this country to keep us safe. So once again much respect. (BTW this is no way a solicitation for money) I just hope it encourages more people like you to help even if it is just to offer them a ride somewhere.
That dash is sweet as, what a wicked truck. Thanks for this one Kieth! Mad respect to you and the first responders out there, keep up the hard work.
Quick and to the point . Do not leave out any steps . Great lesson .
I took notes. Getting your diagnostic process down and recorded for later use is golden. Thanks Keith!
You, Eric and Ivan are better than technical school, thank you for what you do (first responders, always thankful)
Awesome diag, Keith, and kudos for giving back!
Physical limitations kept me from military and civil service, but I'm proud to be able to serve those that serve their country and community, Police, Fire, EMT and Military alike!
Much respect for all emergency services personnel specially 9/11, very nice gesture Keith top man 👍👍👍
Cars Exposed lol
Brendan Donovan 😊😎
All the people from 911 suffered in many ways. A friend of mine here in Toronto had a business in the buildings and lost her employees. She was on her way there. So sad for everyone! Great you are helping him out!!!
OMG!!!! You can’t leave us without the monster truck story!!! Could’ve been video of the year! I bet Eric’O hasn’t even worked on a monster truck.
Nicely done Keith! Clear flood and listening to the cranking cadence is quickly done on most all vehicles to help verify mechanical faults.I sure like that Farsight tablet.
Which vehicles don't have clear flood mode? And is there a way to find out besides trial and error and possibly revving it's too too high of an RPM. Been there done that!
The answer is I am never sure . I always have to give it a whirl and see.
You are a person of great dignity and integrity. It's a pleasure to watch your videos.
Great video thanks brother. I respect everyone of the first responders and our military people. 9/11 I was there really early Saturday morning around 2 am. We had around 12 loads of crane parts to get there ASAP. I will never forget. That is really good the test you ran to pinpoint the problem. Keep up the great work see you in the next video thanks again brother.
12 of around 42 loads the operator has lung problems also. I really have a lot of respect for each and every one of them.
Enjoyed the diagnosis. It's satisfying when a cause can be identified. If after all the engine data comes back normal, I've found the a crankshaft variation relearn will often address a P0300 on a GM small block. Thanks Keith and thanks to all the people that put themselves in harms way to protect us.
Excellent misfire diagnostic tutorial! I know the heat is brutal this week.
TakeCare,
Bill
As always great video Keith. Great diagnostic process.
It’s unfortunate so many people have been affected by 9/11 & some people seem to have forgotten already.
GOD Bless him and his Family . There is no greater service than to lay your life down for others
Thanks Keith, always love seeing someone taking care of the first responders, especially the 9/11 responders.
the power of the scope and knowledge to the other systems the can effect your diagnostic procedure ... great video ....
God-bless you Keith!
Super valuable to have confirmation on these GM Injectors that are often tough to pinpoint when they only differ at times 1-2 or if you're lucky 3 psi on a drop test!
I've been recommending all 8 whenever I have ruled out everything else that can cause the lean condition, but it's difficult to catch at times on the drop test, heat, several tests, IMHO, seems to be the key if you're trying to catch it, scope loses in that aspect, because it can only show so much electrically, it cannot capture flow rate!
Loved this video, you're on it man!
Anyways, loved your shout out to local civil servants and I appreciate your time in helping determine faulty injection problems on GM's-super valuable-more than most realize!
Mr. Firefighter; congrats on making retirement, sorry to hear about the breathing problems. Hope you live long and prosper.
I heard of a tsb where dirt sediments clog up certain injectors, not sure if it applies to this vehicle 🤔 nicely done Keith! Much respect for all 9/11 responders.
Awesome stuff Keith. Legend
Very good video. I am glad someone asked about the "cut off number" on fuel trims where you decide that it is a fuel issue. Good stuff, another refresher on why you should always use fuel trims in misfire diagnosis, keep up the good work!
No decent person would disrespect a fireman and I'm pretty sure everyone watching this channel is tone deaf to door chimes. Lol great breakdown! Thank you for taking time out of your day to better our knowledge base. It's appreciated!
Great video Keith, and I hope my brother firefighter has a great retirement.
Monster truck huh? Nice! I love working on peoples toys from time to time. I have a 03 Cobra with a Whipple at the shop now that’s I’m putting a Mcleod dual clutch in. The guy who owns it works out of town and for Father’s Day his son installed dual GT fuel pumps as a surprise but didn’t know that you need to run a modified FPDM or dual FPDMs with that setup. When I get done with the clutch I’m going to have to wire all of that up as well as require his Kenne Bell boost a pump before the fpdm since someone wired it in after the module. It’s a nice little project and a welcome change of pace. Plus, he trusts me with his cars so he told me to take it out and rip it (his words not mine 😂) when I’m done to make sure everything is running right.
Excellent Keith, thank you...and all those who serve.
Had the same thing the other day but 2002 gmc. The filler neck rotted out and had rust in the tank. Half the injectors had clogged. The fuel numbers differed across-the-board Thanks for sharing
Great video. Its nice that GM gives you lots of good tests that you can use.
much respect to all Fire and Police departments. Difficult and often under appreciated lines of work.
Righteous gesture...Blessings to you and yours for all you do.😎 👍
Good to have that tool I. Just can't afford it tho I've been able to get by with what tools I do have to keep our vehicles running descent enough to stay on the road when needed but now I'm back to the PO300 again after 4 years with over 250.000 miles on our truck.
Keith,
Great case study, diagnosis, instruction/info, and video - thank you! Thank you to FDNY (Im from MA).
God bless
Paul
Awesome Keith! Helpful instruction and the token of appreciation for this man.
Thanks for taking care of the Brother!
You're definitely one of the greatest! I almost would have disappointed if you hadn't done a "good turn"...
Definitely like this! Straightforward!
Yes! I appreciate all 1st responders...thanks to the FFs & LEOs! Selfless ppl, underpaid services.
Great info and very timely! I'm battling a tough cold start/misfire issue these days so this info will surely help. Thanks!
Respect!! They are helping keep us all safe! Thanks for the awesome video !!
great stuff thanks. did it similar on93 vette injectors plugged.usued poewr probe to fire them off .sacn tool that would measure that would be cool thanks for sharing and helping 1st responders.and everybody else! stay cool.hydrate!
AWESOME Keith, thanks for what u do by showing the info/advice on fuel trim. cheeeeeers
thank you for YOUR service!!!!
Nice you you to share your knowledge once again and show your respect to the owner 👍👍💪
your the best helping him out!!!!
Why would anyone argue giving a fireman props? Thanks to all our first responders and military!
Our buddy in the box truck would have just replaced the coils and said he fixed it.
Outstanding information and I salute you for your loyalty.
Wow I would have thought that was close enough 2% is the limit thanks you always give great information thanks
2 psi is my limit
Alot of good information here 👌 thanks!
I’m considering buying an express 3500 and the seller has been open and honest saying there is a “tick” at low speeds and this misfire code. Said he had compression tested and it was 150 said new coils and new plugs, fuel pressure at 60psi. I think I’ll need a mechanic like this to come with me and check it out
Help me understand please. You said 15% fuel trim points you in the direction of an injector problem, but if it were a spark problem, wouldn’t a similar amount of unburned O2 end up in the exhaust and cause similar fuel trims? Thanks Keith.
Now this is what I mean when I say a quality diagnostic
keith what you did for that fire man is awesome.
Great video Keith!!
It would be great if our scan tools would allow you to connect a pressure transducer to the fuel system on vehicles not equipped with a rail sensor. The you could display and save the test results on the scan tool.
Love the horn PID for the misfire
👍👍
Great video and my God bless all first responders.
With a transducer on fuel line you could measure live pressure drop and expensive scan tool is not necessary
another great job and great on your freebe to the fireman
Hey KDF, you guys must have different gravity out there in New York. I can NOT balance ANY tool of any sort in the engine bay, or windshield, or cowl, out here in Maui.
That's awesome Keith! Thank you for being such a good role model! Thank you to all of our emergency responders that run head first into the battle of unknown. They are the true hero's! Thumbs up my friend!
What kind of 'person' gives this a thumbs down?! Kudos Keith! 👍
Thanks again!
As always some very good info. Keep the videos coming.
Thanks
Very nice of you Keith to offer your service for free to help our dedicated servants who serve our communities in this great country. Whenever I have the chance, I support these patrons also. Great info and well explained! Just one question on the injectors. Do you find those cleaners which hook up to the fuel rail effective in cleaning restrictive injectors? Or it better to just replace them as you mentioned in the video. It’s going to be a hot weekend so be careful if you’re out there working. 😀👍
Hear, Hear, Keith! Love the folks that step up to the plate in a BIG way, putting their lives on the line for the rest of us. God bless 'em all!
Question for you, if you happen to see this - will that test show a leaky injector too? I suspect my Silverado has a few leakers due to the dismal mileage and negative fuel trims I've been seeing for quite a few years now.
Great stuff as always, brother. THANK YOU!
Leaky injector will probably not show anything on scope , however the balance test may
@@NewLevelAuto - Thanks, Keith!
Excellent work my friend!
Good evening Keith!
Wow!! Can’t thank you enough for sharing of your time and talents. Always great videos Keith. Learn a great deal. What tablet do you use with your Pico scope??
Keith. A quick question. How did you determine whether it's injection or ignition that causes the high fuel trim? They both would make it lean right? Would you say if the total fuel trim is under 10 is more of ignition problem and above 10 is more of injection problem?
You might be opening up a can worms weither it’s really an oxygen sensor or a combustion gas sensor.
Great question !! I was hoping it would stir in someone 😉. I would say more like 5 on the ft . If one side were at 5 and the other at 0 it would be something I would test further. But at 15 its screaming a fueling problem to me .
@@NewLevelAuto how would you narrow down a 5 and a 0 fuel trim from bank 1 to bank 2?
I guess if it were ignition problem the trims should be -15 lets say!
@@armandonika no. Any ignition misfire will go positive. -15% fuel trim you most likely have a leaking injector or input issue
Great video.. question -- what made you go to injectors first vs testing o2 sensors based on the long and short term trims? Great stuff, thanks a ton!
Nice tip
BG210 with a injector canister cleaner may do the trick to that injector/injectors. It’s possible the oring in that injector is bad and the others may follow. Wouldn’t be a bad idea to get new ones. Thanks to all the brave that serves our country.
So just to be clear . If there"s a + or - 3 lbs difference on any injector that injector is bad ? .
Symmetry is the goal. Even if 8 injectors were slightly restricted at once you would be dealing with fuel trim issues not as likely to be a misfire. However only one or two restricted and the fuel correction for that bank will struggle to correct well enough and misfires will become evident. Hope that makes sense
Great work Keith 👍🏼
Great diagnosis.thanks
Thank you Keith. Good job.
Great video. Keep up the good work
Screw the police, but the firefighters are good. You move too fast when explaining or you just don't show enough at all but I guess it's at least good to see data
Man why isnt there good mechanics like you in nyc and NJ
There are! Let me know what you need and I can get you one
@@NewLevelAuto oh man I would love that. I am in NYC, i have this P0300 on my 2010 camaro ss. Prior mechanic replaced all 8 spark plugs and wires, 2 coil packs, 3 fuel injectors, and 1 o2 b1s1 sensor. I need a mechanic to properly diagnose the true cause of the p0300. If you have someone in NY or NJ plz let me know!
I have 97 s10 p0300 changed sparkplugs, wires, dist cap and rotor still has p0300 starts and runs but not running right and backfiring plz help
Thanks 👍👍
Always thank your public service employees!
Which scan tool are you using ? And what makes does it cover ? Thanks for such great info!
Very cool, your doing a good thing!!!
If it was ignition misfire what would the fuel trim long/short generally be? Also, your videos always make me miss visiting NY idk why lol. Must be your authenticity.
It seems all the people who have injector, catalytic converter and fuel pump problems run regular 87 octane gas. I worked in a 4 shop 7 yrs straight and questioned customers when doing these repairs. I always ran 89 in winter spring fall and 91 in summer
Ive never had these issues in any vehicles even when approaching 190k
Great video Keith!
Great video kieth
Hello, love the video. How would someone at home test this with limited tools?
Thanks Keith
Thanks for the video.
Keith if I had the same issue on a vehicle but the trims were rich , would an injector that dropped more pressure during balance test be the faulty one? I get in your case you had a lean issue with a restricted injector. thanks it was just a thought
So a p0300 because of only 1 injector on 6? I'm fighting a p0300 with heavy misfire on cylinder 8 and some on 7 as well as some scattered around other cylinders. Everything new oem plugs wires even swapped coils and injectors. 07 4.8l Silverado any advice? Compression all 150psi except 7 and they are 127 and 122 respectively. Fuel trims are pretty normal truck does not have any bad symptoms doesn't shake or smoke just a bit short on top end speed.
Did I get this right? You had the injector and the coil on the same channel?
How did you do this?
You had a spot where both wires were close enough together that you were able to put both trough your amp clamp loop?
That's kind of neat!
Grabbed current for both using a current loop to the power feed to both the one bank of injectors and one bank of coils .
@@NewLevelAuto Thanks for the clarification me lad 👍🏼 👍🏼
DID AN INJECTOR DROP TEST ON A 2000 NISSAN MAXIMUM BUT HAD TO BUY A OTC ELECTRONIC FUEL INJECTOR TESTER PART NUMBER 3398 BECAUSE NUN OF MY SCANTOOLS HAD THE CAPABILITY . THE TOOL WORKED BUT THE INJECTORS WHERE NOT MY PROBLEM MY PROBLEM WAS A POWER LOSS ALL OF A SUDDEN THANK YOU SIR FOR YOUR TIME .
Nissan probably didn't build it into their ECU software, that is why we have to use an external pulser on some vehicles.