LOVE THESE DIAGNOSTIC VIDEOS ,,,,,,,,,, ANOTHER BERNIE THOMPSON PLEASE KEEP UP THE GREAT WORKS .

@CartersDiagnostics

11 ай бұрын

Going to try! I appreciate the comment.

I hired a guy in my shop that worked at Autonerdz before Tom sold it and retired. Cheers 🍻

@CartersDiagnostics

11 ай бұрын

Thats cool, small world. Keep up the good work. I see you on Instagram.

Looking forward to it Mike

Yours videos are amazing, in depth explained

@CartersDiagnostics

11 ай бұрын

💯👍👊

Great video!

@CartersDiagnostics

10 ай бұрын

Glad you enjoyed it.

Wow it's amazing what you are able to identify with good equipment and wave analysis. Ride the wave. Timing because #1 was only effected and I could picture a bad tooth on the distributor messing that timing or wearing bushings allowing one high spot to touch the pickup. Great analysis and can't wait to see more.

@CartersDiagnostics

11 ай бұрын

"Ride the Wave" I like it👍 Thanks for the comment.

Like the intro Mr Carter. I see ya.

@CartersDiagnostics

11 ай бұрын

Glad you noticed 😃

Thank you very much I learning from you a lot specially how to use Pico software math channel/masks for my diagnosis

@CartersDiagnostics

9 ай бұрын

💯

the lean condition is because of the misfire, not a fuel issue because the mixture is not combusted there is a lot of extra left over oxygen and that will register as a lean on the o2 sensor. also my homemade ignition wand is made from a relay coil, and i know that it is polarity sensitive. flip it 180 degreess and the signal will reverse or if its on the edge it could go either way.

@CartersDiagnostics

8 ай бұрын

Agreed. Nice on the homemade wand!

As you said, it could have been the plug, or the coil….the only reason to change both the coil and the plug would be if the Labour cost would have been more than changing the coil, otherwise I believe the plug should have been swapped to see if the misfire moved to another cylinder!

@CartersDiagnostics

11 ай бұрын

I wish that I had more time with the truck to just swap the plug and try to prove my theory. But as we know all to well in this biz. time is never in abundance.

Is it possible the coil was absorbing the energy is why the negative spike?

The forklift was very interesting! Essentially the coil dwell time was reversed. Good thing it didn't burn up the coil, I suppose that's what the ballast resistor helps with. While I understood everything you mentioned in the video, you didn't really mention how you got to the conclusion of changing the pickup module. Was it just based on the backfiring, knowing the timing must've changed, and also knowing that nobody messed with the distributor?

@CartersDiagnostics

11 ай бұрын

Once I saw the trigger side af the coil being pulled down constantly and I verified it wasn't any wiring issue, that was good enough for me to call the module. Almost like a process of elimination.

Thanks for sharing. On the forklift, wouldn't the ballast resistor normally be bypassed while cranking for full battery voltage?

@CartersDiagnostics

11 ай бұрын

Its very possible thats the way its supposed to be. On this thing the only power feed to the coil was after the resistor, about a 4inch wire from the resistor to the + side of the coil.

33.40 Isn't it the case that when the ignition is turned on, current flows through the coil depending on the position of the rotor relative to the sensor?

I had to go back and watch the Frontier part of the video twice. The secondary portion of that capture takes some getting used to. I know you said the wand is like a giant antenna so I guess that explains the extreme look to the capture. I can see myself going off looking for ghosts until I got comfortable with that. A couple of times in that secondary it looked like there was a ghost kv about 180 degrees from actual fire cycle. Is that just that wand being overly ambitious? In your video Old Sparky I actually felt more comfortable with secondary when you just taped back probe leads to top of coils. Also I noticed Frank Massey said he liked 2 ms or more for burn time. Cars he routinely tests maybe? Thanks Mike, great video as always.

@CartersDiagnostics

11 ай бұрын

I think the wand, and me not keeping it consistently in the same spot is the issue. Sometimes when im messing with the scope and the camera I move the wand some and it creates things . 2ms is great burn time, Im O.k with 1.2 ms or more especially on older systems. If the kv demand is less, the burn time will be longer if fuel is there for support. Most turbo cars I see have lower compression ratio's so lower compression =lower Kv demand and more burn time. I'm sure most of the stuff he has is turbo charged, that may be why he prefers 2ms and up. Thats my theory. Thanks for commenting.

U have some low spikes goin up and down ..is that like a partial misfire or what would cause that

@CartersDiagnostics

9 ай бұрын

I believe the lower spikes after the main misfire is just the pulse sensor doing its thing, kinda normal. The truck was very smooth after the repair, so I don't think it had additional problems.....not yet anyway 😄😄 Thank for the comment.