Ivan I have followed your videos for years & am a relative newcomer to Bernie’s channel. He is awesome & this was a fantastic find, yet I see it has gotten 5 thumbs down 👎. They must be mad or silly🤔
NO SHOT you would be able to see something like this without the tools you have at hand. This is crazy. Great stuff. Your a legend for showing people things like this.
Totally amazing! He said he was working with scopes since the 80s. Wow! Now some shops say it’s a waste of time. Looks to me there is still a lot of shooting from the hip. I commend Bernie and all the Techs who get it right the first time even if it takes longer. Thanks again Bernie!
Hi Bernie, This was an amazing diagnosis and the use of the decade box was a masterpiece!! I just order the Escope Elite 8 channel full kit, can't wait to use it! Coming soon on my channel!
Thank you so much Bernie for this video! I just recently did a timing chain job on my Mustang 4.0L and I had the same issue and code. I had to grind down the timing cover so the crank sensor would align with the tone ring. Now the engine runs smooth. Thank you sir!
Thanks Bernie for explaining why this computer shut off the injectors. It was obvious once the scope had shown the pattern and you explained it. The decade box enhanced the operation which then shows the problem........priceless!
Awesome awesome diagnosis. Something most people, even with the use of a scope, wouldn't have picked up on. Its great to see some advanced diagnosis to know what to look for and help us think outside the box. Thank you
Bernie you're amazing! First time I see the add value of using a capacitance box in a car system, I've been using this to fix a lot of Computer motherboards and plasma tv boards among other things but the use in a car signal is amazing! Thank you!
Untill this video, I had never even heard of a Decade capacitance box. I pretty much have to agree w A LOT of other comments, I SERIOUSLY doubt if I could have properly diagnosed this. Awesome awesome, as always!!!
Love your stuff man. I'm feeling the Bern. I'll be getting the Escan first to hook up to my Toughbook. Then on to the escope to start in cylinder pressure diag.
you sir are a lifesaver !! i swap all timming comonats on one of these junks, a month later this problem manifest, been pulling my hair out!! and whil i do have snapon modis, i hate sylliscope setup, and may have missed this subtle wave deformity anyway< but a quick visual varif path of center relucter wheel too close to center sensor , i believ what happen is over time cheap makeshift afterthout ckp sensor braket get heat distorted ! JUNK ! but some quick adjustment to t-covor and grind sharp edge off of half tooth and she runs perfectt !! GOOD FIND THANK YOU !
As you can see from the video, making a robust VRS zero cross detection circuit is not trivial. In looking at the waveforms, the VRS sensor has a DC bias voltage from the EDIS system. This is an attempt to make a virtual ground front end interface circuit that is less expensive to design as compared to a dual supply circuit where there is no virtual ground, ground is 0 Volts (the VRS is just a low impedance AC source which means it will work with a virtual ground or an actual ground, 0 Volts). Also, you can see how critical it is for the sensor and target to be OEM and to have the proper clearance and center position. The magnetics of the target and sensor, even if correctly positioned, produces some interesting magnetic effects. For example, the mechanical position of the target wheel may not translate to the actual sensor output trigger point. There is actually a little bit of magnetic skew. You can see this if you put a very high resolution instrumentation grade optical encoder on the crank and then compare to this what the actual aero cross is indicating. You can also see some magnetic shift, as compared to the true mechanical position, as you increase RPMs. So, the lesson here is when you move away from OEM targets and sensors, you can actually introduce a fault.
very interesting to say the least. I was thinking about a pico scope but now I'm lean to this E scope. I just am thinking about so many user friendly features.
Very nice diagnostic work; thank you for sharing. I see your capacitance decade box appears to simply be attached to the signal output backprobe via a gator-clip. How does this effect the signal as seen by the engine computer? My assumption would be additional capacitance acts as a "pull down" on the circuit, which implies the box could be installed anywhere on the output side to clean up the signal, including at any point on your scope test lead?
Had a similar problem on a 97 manual jeep had to space it out 2/32 to gap it . The engine had 200k on it an the thrust washers were worn out an the crank had enough play to push the pick up away from the crank sensor
Amazing Diag lesson and well explained, thanks for sharing, I have a question please , what setting have you got your decaebox on ? I didn’t know were you add resistance or voltage to that signal wire . Thanks
The battery cables look like a complete hack. It looks like the alternator power output cable is missing its fusible link(s). I think on this year Mustang the CNK VRS signal is conditioned by the EDIS ignition (coil packs) and a PIP signal is then sent to PCM as a reference. You should look at the PIP signal to the PCM to see if it drops out. I think the CAM signal goes directly to the PCM and is not needed by the EDIS during crank because the coil packs fire two plugs on opposing sides of the firing order (no CAM information is needed), which is doable because the engine timing is even firing (symmetric). It would really be helpful if a wiring diagram was reviewed as part of the diagnosis.
Whats the explanation for the housing protruding excessively at all ? It does not make sense that the housing had to be ground down , and if so, the car would have had the fault since it left the factory.
my guys cant find issue on my 08..have changed cam and crank sensors..dint know what theyre doing next..i am beside myself worrying over whether they will give up on repair!!😢
Pretty sure I may not have even noticed the bump.... I guess this is how the ECU's are engineered with a specific threshold and internal filtering....just with your own switches :)
Was that trigger wheel original or replaced ? If replaced , was it OEM or some " white box " crap ? Or , as mentioned - Dorman ? Just imagine if it was never engineered properly or a mold that gets out of tolerance when run thousands of times . Think of all the vehicles that had problems and the parts cannon - including ECM replacement ! And they were NEVER fixed !
Wow, mind blown...That was some NEXT LEVEL STUFF! Had no idea that a capacitive decade box was a thing. Amazing diag Bernie!
Ivan I have followed your videos for years & am a relative newcomer to Bernie’s channel. He is awesome & this was a fantastic find, yet I see it has gotten 5 thumbs down 👎. They must be mad or silly🤔
Totally agree on the next level diag! Ivan
Ivan Bernie is amazing, just like you!
Indeed it's just something else, this man is absolutely amazing .
MISTER THOMPSON IS TOTALLY NEXT LEVEL THINKING.......ONE DAY I HOPE TO BE THERE .
I second that!!!!!!
NO SHOT you would be able to see something like this without the tools you have at hand. This is crazy. Great stuff. Your a legend for showing people things like this.
As a 2nd yr auto mechanic I really want to learn oscilloscopes. and understand how the computer sees information. Awesome diagnosis.
Totally amazing! He said he was working with scopes since the 80s. Wow! Now some shops say it’s a waste of time. Looks to me there is still a lot of shooting from the hip. I commend Bernie and all the Techs who get it right the first time even if it takes longer. Thanks again Bernie!
WOW, this is the highest level possible in the automotive repair industry! Sir 🎩 of to you!
To the ones who disliked the video YOU ARE THE SHAME OF THIS INDUSTRY, you can’t get not even near to this level!
Hi Bernie, This was an amazing diagnosis and the use of the decade box was a masterpiece!! I just order the Escope Elite 8 channel full kit, can't wait to use it! Coming soon on my channel!
Thank you so much Bernie for this video! I just recently did a timing chain job on my Mustang 4.0L and I had the same issue and code. I had to grind down the timing cover so the crank sensor would align with the tone ring. Now the engine runs smooth. Thank you sir!
Bernie, excellent case to show the value of Oscilloscope testing. Thank you for all that you do to help educate our industry!
Thanks Bernie for explaining why this computer shut off the injectors.
It was obvious once the scope had shown the pattern and you explained it. The decade box enhanced the operation which then shows the problem........priceless!
Awesome awesome diagnosis. Something most people, even with the use of a scope, wouldn't have picked up on. Its great to see some advanced diagnosis to know what to look for and help us think outside the box. Thank you
I like the whole electrical and electronics involved on this channel. We learn something new everyday.
I have a bit of electronics experience, but I am blown away by your use of a capacitance decade box to confirm the problem.
Fabulous diagnostic! Learned a LOT! Too bad the stupid sensor bracket didn't fit right. ABSURD! Thanx for this excellent lesson!
Bernie you're amazing! First time I see the add value of using a capacitance box in a car system, I've been using this to fix a lot of Computer motherboards and plasma tv boards among other things but the use in a car signal is amazing! Thank you!
I seriously agree with Ivan from PHAD that is next level stuff. I am hooked on your videos Bernie. So educational,just super👏👏👏👏
Had it been a genuine OEM sensor the issue would not have existed. Great work with scope.
Wow that is some serious knowledge, experience, and skill applied and explained in a way that makes it easy to understand.
Untill this video, I had never even heard of a Decade capacitance box. I pretty much have to agree w A LOT of other comments, I SERIOUSLY doubt if I could have properly diagnosed this. Awesome awesome, as always!!!
Love your stuff man. I'm feeling the Bern. I'll be getting the Escan first to hook up to my Toughbook. Then on to the escope to start in cylinder pressure diag.
That’s some next level diagnostics right there😳
Awesome video. The best used tool there was the brain. Great tip in there Bernie for using the decade box.
you sir are a lifesaver !! i swap all timming comonats on one of these junks, a month later this problem manifest, been pulling my hair out!! and whil i do have snapon modis, i hate sylliscope setup, and may have missed this subtle wave deformity anyway< but a quick visual varif path of center relucter wheel too close to center sensor , i believ what happen is over time cheap makeshift afterthout ckp sensor braket get heat distorted ! JUNK ! but some quick adjustment to t-covor and grind sharp edge off of half tooth and she runs perfectt !! GOOD FIND THANK YOU !
Very subtle detail that can only be seen with a scope. Very nice diag. Thanks for sharing!
Always a great diagnostic video. Thank you for sharing.
Wow this guy Bernie is sharp!
As you can see from the video, making a robust VRS zero cross detection circuit is not trivial. In looking at the waveforms, the VRS sensor has a DC bias voltage from the EDIS system. This is an attempt to make a virtual ground front end interface circuit that is less expensive to design as compared to a dual supply circuit where there is no virtual ground, ground is 0 Volts (the VRS is just a low impedance AC source which means it will work with a virtual ground or an actual ground, 0 Volts).
Also, you can see how critical it is for the sensor and target to be OEM and to have the proper clearance and center position. The magnetics of the target and sensor, even if correctly positioned, produces some interesting magnetic effects. For example, the mechanical position of the target wheel may not translate to the actual sensor output trigger point. There is actually a little bit of magnetic skew. You can see this if you put a very high resolution instrumentation grade optical encoder on the crank and then compare to this what the actual aero cross is indicating. You can also see some magnetic shift, as compared to the true mechanical position, as you increase RPMs. So, the lesson here is when you move away from OEM targets and sensors, you can actually introduce a fault.
very interesting to say the least. I was thinking about a pico scope but now I'm lean to this E scope. I just am thinking about so many user friendly features.
Very nice diagnostic work; thank you for sharing. I see your capacitance decade box appears to simply be attached to the signal output backprobe via a gator-clip. How does this effect the signal as seen by the engine computer? My assumption would be additional capacitance acts as a "pull down" on the circuit, which implies the box could be installed anywhere on the output side to clean up the signal, including at any point on your scope test lead?
Had a similar problem on a 97 manual jeep had to space it out 2/32 to gap it . The engine had 200k on it an the thrust washers were worn out an the crank had enough play to push the pick up away from the crank sensor
Amazing Diag lesson and well explained, thanks for sharing, I have a question please , what setting have you got your decaebox on ? I didn’t know were you add resistance or voltage to that signal wire . Thanks
What a man! Great video's, keep them coming! Thank you!
Very nice diagnosis.thanks for sharing your knowledge.
Great diagnosis. it seems that the trigger wheel was installed incorrectly.
Bernie your awesome. Thanks for the info.
Go go gadget pen. Mark the screen with a double click. Lol
how much is that tool between your ears.........you have such a great eye for seeing this stuff.. Thanks for all you do
Superb video Bernie. Great use of the tools that you have!
Excellent diagnostic approach!!!
Wow! Amazing find I’m always amazed of your knowledge great stuff Mr. Thompson.
Hi Berney , great video , well explained as always thanks
Rob mobile man
Nice this man should teach at a tech school
this is AWESOME as always.
Decadebox... cool.. never seen one used.. love your cannel!
The battery cables look like a complete hack. It looks like the alternator power output cable is missing its fusible link(s). I think on this year Mustang the CNK VRS signal is conditioned by the EDIS ignition (coil packs) and a PIP signal is then sent to PCM as a reference. You should look at the PIP signal to the PCM to see if it drops out. I think the CAM signal goes directly to the PCM and is not needed by the EDIS during crank because the coil packs fire two plugs on opposing sides of the firing order (no CAM information is needed), which is doable because the engine timing is even firing (symmetric). It would really be helpful if a wiring diagram was reviewed as part of the diagnosis.
Thank you for sharing your knowledge
Looking at the picture of the trigger wheel I can’t help but notice how clean this engine is, I don’t remember if he said it was a new engine or not
yeah he said in the beginning that it was swapped
I wonder if an aftermarket sensor and crank pulley were used. Dealer parts may have been in tolerance
Thanks for sharing Bernie... Cheers.
Whats the explanation for the housing protruding excessively at all ? It does not make sense that the housing had to be ground down , and if so, the car would have had the fault since it left the factory.
Also I’ve never seen or heard of anyone using a decade box. Amazing
This was a great video!
my guys cant find issue on my 08..have changed cam and crank sensors..dint know what theyre doing next..i am beside myself worrying over whether they will give up on repair!!😢
excellent diag!
who sells that Box?
This is amazing. Subscribing right now.
Bravo, learned a lot. Thanks for the video.
Why do you think just the number 4 injector signal went out and not number 1 injector
Was that trigger wheel installed backwards?
That was my first thought Mike
Super job Bernie thanks.
Very impressed
Pretty sure I may not have even noticed the bump.... I guess this is how the ECU's are engineered with a specific threshold and internal filtering....just with your own switches :)
Did someone use a Dorman replacement part? LOL
Was that trigger wheel original or replaced ? If replaced , was it OEM or some " white box " crap ? Or , as mentioned - Dorman ? Just imagine if it was never engineered properly or a mold that gets out of tolerance when run thousands of times . Think of all the vehicles that had problems and the parts cannon - including ECM replacement ! And they were NEVER fixed !
Awesomeness!!.
How is escan vs snap zues
so, was the sensor o.e.m. or chinese?
Aftermarket balancer?
40 years of experience.... I don't have that kinda time lol
Man that was Awsome! Great great video
You are amazing.
Awesome video!
Don’t mind using scopes they just too expensive.
your the man
Thanks for sharing 🙏🏻🙏🏻
Awesome
Bravo
Very cool!!!!!!
Awsome!
nice thanks
Nice!!!
Car was probably in an accident and the parts are aftermarket junk
Always causing problems thompson is great
🇺🇸💪♦😁
With all I know, I would of fail to diagnose this car. In a spectacularly fashion. I would of call the ecu bad.
.200" ? Quality is job x.
I'm pretty sure Bernie was scratching his head on this one when he first diagnosed it.
Thanks for sharing your knowledge. Nice scope that too 👍