Honda Civic - Missing Cam Signal - Sensors Already Replaced
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- Опубліковано 19 лис 2024
- In this video I have a look at this 2018 Honda Civic with the big 2.0 that was dropped off from another shop with an engine light on and a P0340 and a P0344 that won't go away. The shop replaced both cam sensors and the code came right back. At this point they asked me to have a look and see what we can do.
-Enjoy!
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Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.
changing parts is the same everywhere...BUT...your diagnostic abilities is beyond .....thats why I watch
Mr. O. demonstrates again that other shops don't take the time to diagnose properly, but they will take the time to change a part and charge you for it. I suspect he gets the job because the customer came back or the other shop knew the parts cannon wasnt going to do it and didn't want the comeback. They're almost there if they were motivated to prevent a comeback.
Love watching him think through problems
@@harrylister804 At flat rate wage the guy at the other shop parts cannoned it ,did not fix it so send it to SMA.
@@harrylister804 if i ever had to take my car to a shop, i'd make them put it in writing that if replacing a part doesn't fix the problem, i'm not paying for it
Changing parts isn’t the same in the rust belt as it is in fl as DR O likes to say lol
Was reflecting hours after seeing the video and I realized something. Even though Eric is getting freebies from the old Horror Fraught, he's handling it the right way, state it's a freebie and move on. He doesn't let the video turn into a sponsorship commercial. There have been, shall I say, a rise and fall of UA-camrs in the automo industry and that channel had a lot of sponsored content that really turned me and several others away from it. If every UA-cam channel was as much educational, as humourous, as honest as SMA... This world just might be a little better of a place.
When HF wanted to know if they could send it to me, I was clear with them that I do not do dedicated sponsor videos, but I am happy to take a free tool and I will use it (a) if it like it (b) if it works like it says it does and (c) if I think it may benefit the people because it is a tool they have been thinking about or might purchase sometime. HOWEVER..... if the tool is junk everyone will see it because I won't and don't sugar coat anything. Honestly so far it is a pretty impressive tool for the price point. I get contacted by tool companies all of the time and as soon as you tell them that you won't upsell their tool on a dedicated video, they don't want anything to do with you. That is fine by me because I am not going to betray my viewers into thinking something is a great tool when it's not just to make a few thousand. We call that lying where I'm from haha. HF only wanted one thing from me. I must declare that the tool was received free of charge. That way the federal trade commission doesn't get all wound up I guess 🤷🏼♂️
@@SouthMainAuto bravo, sir. Being a DIYer, I have a good mix of HF tools. I love my 72" US General box, most of my wrenches and sockets are Icon. The ratchets are Pittsburgh Pro. For the light use that they get + the lifetime warranty it's hard to beat. I try to keep a mix of quality based on how much I use it. Though I learned one thing the hard way. Stay far away from harbor freight trailer wiring. I had a 4 way plug on magnetic tow light rotted clean off with the green crusties within a year of buying it... Twice. Talk about a money shot. These things were well taken care of, too, put away in a tote by themselves when not in active use, not subjected to high moisture, etc.
$16.99 seems inexpensive….
@@SouthMainAuto Casey Ladelle made an honest review of a horrible e-bike. Another company approached him. "We and your viewers know you are honest and we think our product solves all the shortcomings you pointed out with the other." Sometimes honesty works for you.
Lol great price @@joe2mercs
Harbor freight, a Honda Civic, and a solid diag? You hit the Yahtzee today, SMA!
you left out the most important tool - the uscope - i dont have one, but i have two pico's and a topdon 4ch scope, and if i get really hard up i will go pull out the snapon vantage.
That reminded me, I Ioved Yahtzee
Its hondoo
Just a quick explanation of the 200mV to ground of the signal. It is likely that the output of the sensor is using a standard NPN transistor to do the grounding of the signal. There is a spec called Vce Sat (Voltage Collector to Emitter Saturation). This is normally near 200mV. Many 5V TTL circuits work this way and 200mV is totally normal here.
It’s funny, I heard Mr. O say in a previous video that he doesn’t do planes. Well, I’m not the fondest of flying either. It’s amazing because me and my wife just came back from Greece, which is a 10 hour flight. I needed something to calm my mind, and what better than watching some SMA! I offline downloaded 10 hours of SMA videos and watched every minute of them. Definitely helped occupy my mind, while learning at the same time !
- Thanks Eric 👍🏽
So I kinda was on a plane then 😅
The way Boeing is going... doncha WANT him working on planes?? Or spaceships for that matter? Those astros wouldn't be stranded if Boeing had just swallowed their pride and towed their space vehicle to SMA for a pre-flight inspection... frigholes...
a boat ride to Greece and then back might have extended your vacation time past your planned duration :p
@@SouthMainAuto you would be alright trust me. My wife has forced me enough times now that, I’m pretty numb to it lmao 🤣
I’m amazed that Mrs. O hasn’t forced you on a “leave the kids at home” vacation out of country already
I took a little brown pill and opened my eyes as we were landing in Spain. Never moved once.
I haven’t heard “hey it’s that guy” in a while. good to see he is still above ground.
7:48
I, as a 73 years old have learned so much from your videos, thank you!
It's always nice to watch a genuine pro at work.
Cool beans old son. That woulda kicked my azz. Always an adventure with you, and I thank you.
Glad you enjoyed it
Man all that inspection for a bad wire. You have the patience of Job. Great as always, Eric.
And it wasn't from the Prince of Darkness!
SPOILER ALERT OOF
It's also a lesson learned that what's probed on the scope/meter as 5V doesn't necessary mean it is supplied from the intended source. Great diagnosis as always.
Breaking out the little guy scope for the money shot and the win. Process of elimination and multiple tests. Excellent.
Always a pleasure seeing diagnostics on an issue from A-Z for a car. Minimal edits and just showing us the process. I love it.
Nice find Eric O on the wiggle test on the 5v reference being broken inside the insulation on the plug 45:00 @South Main Auto Repair LLC
Eric, you make it very apparent that not everybody "can do it". Thank you for sharing your skills, one day I may be a hero too!
Thank you for allowing us to have a way to support you guys and I love the early video access.
Thanks for watching :)
Mrs.O as your husband calls you Wow Mrs.O You sure light up the shop!😊
It's sad that dealers don't have the quality mechanics like you.
You know him, you watch him, he is!... "The Wire Whisperer"
@@mdorf61 🤣🤣🤣
Ivan
I've watched enough videos that I'm starting to understand the flow of logic. You are doing a great job teaching me how to problem solve.
Hi Mrs.O., Eric you proved it again, This why all roads lead to Eric @ SMA. Good one Eric!
Clear nail polish is the best for poke holes, drys fast no mess like liquid electrical tape!! These troubleshooting videos are the best!! Awesome job!!
Liquid tape ain't bad, the dang brush is too big.
I mean ... doesn't have to be clear ... show a bit of style, pizazz, personality! you could do black, gray, white even!
@@Boraxo I use a tooth pick for applying the liquid tape in tight places.
Yet another fun filled video. I love it when you get excited about a diagnosis. These are the ones that keep you coming back for more.
I'm such an electrical diagnosing 304... I find all my own power, ground, and signal wire issues when they pop up on my stuff. Matters not, I just can't get enough working through such problems and finding them, though. I *have* to sit through every single one of these basic sleuth efforts to find out where the issue resides.
Truly is amazing the number of professional repair personnel that can't do these most basic trace-downs. And, it's one of the reasons that I refuse to have anyone look at my stuff.
Love the "Phone off the Hook" tone that Launch/clones have been using for decades.
Hey there Eric. Im a retired utility compny mechanic of 37 years at one company lol. You sir are taking the steps needed unfortunately needed this age, to FIX modern vehicles. Its the same with big trucks sadly. I sumwhat became the fixit man after many years as I would take the steps needed, and time, to find whay makes sense in all of it. I found over the years that many folks I worked with would read the codes,throw all the parts at it, company had money, and when that didn't work, get the fixit man on it. I sulute your diligence in troubleshooting. You are one of the few willing to take all the steps needed to find the money shot. By the way, you are underpaid.
These are always my favorite videos. I just keep learning and learning and learning! Thanks as always!
You couldn’t have found it without that cup of coffee. Sometimes the little things make all the difference.
@@kenmohler4081 sometimes just stepping away for a few minutes makes a difference
@@TooTall_John That is what I would have to do. But having Mrs. O bring me a cup of coffee would be my first choice.
when i started watching this video, a David Attenborough impersonation was not on my bingo card
Perhaps you have some of the oldest bingo cards...... On Earth
Yeah, that reference kinda caught me off guard too. Not too bad an impersonation though.
What else do you have on your bingo cards? Trying to "hello fellow kids" into relevance?
Seeing Mrs O in a video always put a smile on my face
I never ran into voltage drop or current carrying capability issues till I started my current job as an airport gse tech (all the trucks, tractors, belt loaders and stuff around planes at the airport). Watching and learning from your videos has gotten me through some serious binds! Thanks for doing what you do Eric!
That's probably the best stuff at the airport to work on. Don't be tempted by the junk with wings, you'll be sorry. Advice from an A&P/IA.
I hope you take it as a great compliment that other shops bring you cars to diagnose circuit codes. They know what’s up. You have patience, experience and a great intuition for bad wires. I believe circuit diagnosis should be an Olympic sport and you might get the gold.
Mr. O, i cant thank you enough for these videos. I have been watching for a while now, and i employed your process on tracking down an electrical issue on my old 4Runner. You're right! Never trust your service info, even if its an FSM!
You taught me how to break down the circuit to isolate sections, and in no time i was able to find the culprit!
You are an amazing teacher/explainer of electrical systems and theories.
Thank you!
The Honda earthdream engine is a paint to replace the alternator on. One of the bolts for the alternator is hidden behind the tensioner pulls housing Eric O 7:30 @South Main Auto Repair LLC
Oh Man, Glad That Guy showed up! I was afraid he was missing just like Lawnmower Man.
Been watching this channel for years now still my favorite
Another SMA video. Used some SMA logic yesterday. If he can do it, I maybe able to.
Hopefully the shop is giving credit where it is due and isn't just boasting that they figured it out.
Bahhh it don't matter to me. Lots of cars to fix out there
Pomona connectors are very highly regarded in the research community. Glad to see that you are using them.
Always nice to see Mrs.O.
I use the Pomona piercing probes a lot and love them but the best… That belongs to Phil’s probe! That thing has saved me a lot of time getting to wires that I would normally have to disassemble things to get to. I couldn’t live without that thing anymore.
Agreed! That & the Uactivate relay tester kit. Have the short Phils probe, long one is always on backorder!
Wow stalled then almost didnt start very interesting issues now the cam signal is back strange Eric O 25:15 @South Main Auto Repair LLC
The 'wire detective' having a great time catching the culprit..... thanks for the video.
Eric you are still one of the very few best. Blessings to you and yours and stay safe.
Looks Like the Ecm Has failed and its providing a Dirty Intake cam Signal pretty hashy. Makes me think there is a Broke. Wire on that intake plug Eric O 😮 20:18 @South Main Auto Repair LLC
I love the work you show.There should be more mechanics like your self that actually diagnose problems.And throw parts.Try to put out more videos.
Very cool. Nice find. Not very obvious. I like your little oscilloscope Great video! Thanks.
I’m no mechanic by trade but can do some shade tree stuff. I’ve been watching your channel for some time now and am really impressed how you can diagnose electrical issues. I’ve learned quite a bit from your channel. Thanks for sharing.
There somebody who spent 35 years in the tech sector, I can tell you those teeny tiny wires break very easily and even worse if the insulation is made of silicone, they can break and you’ll never even see it. . Watching you diagnose that cam sensor gave me flashbacks of my years diagnosing broken wiring harness. Get a set of phone company scissors. The little notches on the side are made for stripping those little wires. Klein makes great ones and they are not pricey.
That’s one of those things you don’t think about because why would wires break inside the insulation?
Good job though. I wish I had those little scopes I Had to drag around a tektronix. I did snag a snap on vantage at a pawn shop for short money.
Maybe not the most common thing but i have run across broken wires inside insulation that had no external damage visible. Pawn shop scanner? Probably stolen. Lots of stolen tools end up at pawn shops. Not everybody marks or keeps a record of serial numbers. Years ago where i worked two mechanics had their tools and toolboxes stolen. The thief(s) had stolen a Company Chev 1/2 Ton out of the compound, got into one huge building where the guys were working on railroad equipment, and loaded up. Several months later another mechanic spotted the truck in a bar parking lot--it had been repainted a different color. The bar just happened to be a few blocks from our shop.
Do thry use the same wire on the space shuttle?
Throwing stuff at the wall to see if they stick.
Take it to the Master Troubleshooter!! Love the video, Mr. O!!
Nothing like a broken signal wire . It fools some of the guys all of the time and makes the smart ones work a little harder. Good foresight finding the reason it was running lean. All in all solid days work at SMA. I’ve learned so much from Eric O and some other good diagnosticians on UA-cam. Fun stuff
I keep waiting for someone to drive by with a sign on their car - "it's that guy"😂
hmm
Nice to see tyre correctly spelt for a change.😊
I really know how it feels when one fix a problem other "skilled mechanics"can't. Kudos for Eric O.
A 53 minute video with no trains and no lawnmower guy? Nice diagnosis, Eric. GREAT VIDEO!
huh
No flood siren either!
I laughed out loud when you instantly found a vacuum leak the second the engine started running smoothly
Clue was the noise spikes on the 5v scope trace. Indicates the 5v is high impedance. The exhaust cam 5v was clean. Great work. Most shops don't know how to do this!
Three best auto diagnostic channels on UA-cam:south main, pine hollow, and baja joe, thanks guys for showing me how little I actually know 😂
Great troubleshooting. Very satisfying
I remember you had one a while back like this one and it was the tone ring. Easy to assume it's all fine inside. Great work again.
I'm sure you'er getting tired of me telling you how great you are, so this one is for Mrs. O. She sure does treat you good! She's a keeper!
Like always Eric, great diagnosis and explanation bud. I truly appreciate your method of finding the root cause of the problem. It help me in my diagnostics. I always ask myself what would Eric do next. 👍👍👍👍
Some day I'm going to get off the thruway and zip past SMA. I'm going to honk in the hopes that I'll be "that guy". But I won't be the one to just drop in. You too too much fine work for someone like me to steal your time for nothing.
I appreciate your videos. I always learn a little bit more.
Eric..you are a gift and a God send to your customers
Another great diagnosis Eric O
$16.99 FOR A SCANNER! You must got the SUPER COUPON
$1,600.00
@@donaldreid1847 $1699.99
Remember when all you needed was air , fuel and spark to run an engine??? Those were the good old days. NOW the engine needs multiple computers, 15 miles of wiring, 60 or so sensors, and a series of software updates to run. Thank goodness we have Mr."O" to speak the modern car language.
I nothin but admiration for your skills Eric.
Unbelievable! Nice Job EO.
Man, the detective work! A+! 👍
It's always great checking a problem then finding that your equipment led you up the wrong path due to intermittent failure of the equipment.
Excellent! Eric, that Honda Civic thanks you. This was a terrific troubleshooting teaching moment for all of us interested in vehicle repair.
AT 46"00
If only one time a crimped connection ruins your brain
At least they put it pretty much back together- that shop has integrity
How does copper disappear inside the wire?
A great lesson Mr.O
You blow my mind. You are the man!!! I pray I never need your service and if I do I doubt I'll find anyone around here with 1/10th your skill set. Well done sir, well done.
I agree Connector Pinout is amazing not just showing the pinout but the color and locsyion on Ecm. Wish more manufacturers would do that setup of pinout. with honda There service data always Had sucked just usless 34:04 @South Main Auto Repair LLC
Harbor Freight sells tools for $1700. I didn't think they could count that high. Pretty cool: built in coffee delivery system. No chia, no mice, must be a semi fatal manufacturing flaw. Thanks Mr. O!
There wasn't even green crusties. Either manufacturing flaw or maybe movement fatigue.
Seeing that garbage on the 5V line, which then clears up could easily be dismissed as a fluke. I wouldn't beat yourself up too much about that. You found the problem, and that's what is important. Root Cause Analysis (RCA) is what those guys in the white coats like to call it! You are very good at it.
You tried out the HF Earthquake battery powered impact gun and it lasted a while and then gave up the ghost later so you sent it to the Torque Test Channel and they said it was basically kaput. Some of their stuff is fine but most of it is for the DIY crowd. I'd buy one of their floor jacks if my 40 year old Craftsman ever craps out. I'll probably be worm food before then. Glad you have the integrity to tell it like it is with no frosting on top. You the Main Man.
They are trying to move into the high level professional market also. Basically the Icon line is to compete with snap on. Higher price than a lot the low level tool price anywhere, but much cheaper than the tool truck price.
That was a fantastic find. Those little bugs like that are the hardest ones to find (speaking as a software engineer who likes to throw a wrench around in my spare time)
Interesting that the Icon Scan tool Has Launch software. Most of the time I can't stand launch there so Slow and they always have less Memory and ram then any other Scan tools I have used. Eric O 1:35 @South Main Auto Repair LLC
Ah yes.... the 'ol "broken wire inside the insulation causing lost/erratic signal"...
Used to be not unheard of on the old GM HEI pick up due to it being connected to the vacuum advance pod.
Nice job on the diag!!!
The display of that new scan tool looks cleaner than the other scan tools.
Screen is not all scratched up ……yet
Kudos to the other repair shop for shipping to EO seems like they’re interested in fixing issues for their customers. Now I suggest they watch some SMA videos so they can be the man instead of sending it to the man EO! Excellent work Eric!
Lessons I have learned from Ivan that would have helped you here:
0. Don't touch any of the wiring/connectors - you may temporarily fix the problem.
1. Always use piercing probes.
2. Always probe at the PCM.
3. Always use a multi-channel scope.
4. Do the wiggle/tug test on the wires/connectors while watching your scope.
Eric, you are “The Columbo” of automotive diagnostics.
Thank you Mr. O. You are doing a great service for the diy people out there. God bless you for doing that.
That was a good catch on the connector. It would have been nice if the other shop would have let you fix it, for some closure.
You da beez kneez man. Anytime you are know by other shops as the "go to" guy for difficult to diagnose problems, you da man. 👍👍👍
Oh wow! Look who got one of the first T10's!!!!!
this was one of my favorite videos because i was able to understand the testing procedures you described. i fixed subway cars for the port authority trans hudson for 28 years and learned something new almost everyday. i am sure the same thing happens in your trade
I forgot to mention the turbo waste gate sound effect in your repertoire of mechanic sound effects. So your torque wrench sound and turbo waste gate sound are believable, but your cylinder deactivation solenoid needs work. 😜
That was a fun ride. Thanks for taking us along. Huzzah!
You gave an honest non biased description about the tool. Will it work for everyone? Probably not.
But it does look like it'll work for a diy application. May work great on a service call or a road test also. HMMMM!
That was a tricky one with that intermittent connection, but persistence paid off!
Nice to see Mrs. O also.
Excellent diag...It would have taken a year for me to find that one...
“HARBOR FREIGHT, NOT NOT A SPONSOR!” ERIC allowing someone to send him a tool to review is pretty cool, as I know he probably says no to a lot of companies. Interesting diagnosis.
He's not complaining
2 Videos in a day! More good content. PS Eric you're price per hour is the same the place I go to here in San Antonio. Oil changes every 3 months for my 2013 VW Beetle TDI and odds and ends.
The difficult ones return the most satisfaction when you find the problem. :)
Wow. Good instruction. Gonna bookmark this against putting cam & crank sensors in my 1994 V-10. Old wires bbq'd in Texas weather . . . check *everything* twice.
Betcha the other shop replaced the PCM as well as per Honda Service Data...but neglected to tell Eric out of embarrassment! 🤣
Apparently the other shop
couldn't do it . They need to watch this channel.
Those are hard to find when they have real current/amps moving through them. Really had when it’s a Mv of 5V. Great job !