2005 lly

[2004LB7]

That's realistic/in the realm of what I'd expect.

Stock idle main rate mm3 looks a little high to me. Would make injector #1 balance out of spec. And maybe some others pretty close

 

[Bdsankey]

Stock idle main rate mm3 looks a little high to me. Would make injector #1 balance out of spec. And maybe some others pretty close

Yeah, I agree. My post was made before he added 4 more post and pictures. It makes it a real pain sometimes.

Personally my gut is leading me to a conclusion but I would rather have the data to verify my gut feeling.

 

[2004LB7]

Yeah, I agree. My post was made before he added 4 more post and pictures. It makes it a real pain sometimes.

Personally my gut is leading me to a conclusion but I would rather have the data to verify my gut feeling.

Plus, the OP hasn't really given a good description of what the problem is. "Feels like a miss" is that during idle? Says idles fine. So is it during acceleration? Cruising? What does a miss feel like? Maybe it's the transmission slipping and not engine related at all. Maybe a video of the problem would help

 

[nitrochad]

It feels like injectors are dropping out at times while cruising and in throttle. Nothing at idle. No check engine light

 

[nitrochad]

I have some logs where do I send them?

 

[Bdsankey]

It feels like injectors are dropping out at times while cruising and in throttle. Nothing at idle. No check engine light

Log the condition, bottle test as well to verify it is not the relief valve.

I have some logs where do I send them?

Put them into a .zip folder and upload here.

 

[nitrochad]

It did this problem before I changed the relief valve hence why I changed the relief valve.

 

[nitrochad]

Source: https://youtu.be/wkNohMuKZdQ


It sounds like this but not at idle while cruising or Lite load 2.46 in video

 

[Bdsankey]

Source: https://youtu.be/wkNohMuKZdQ


It sounds like this but not at idle while cruising or Lite load 2.46 in video

9 out of 10 times that's sloppy injectors when it happens under load. It's the sound of an uneven/dirty/muddy (not precise) start and end of the injection event. At least this is my experience.

 

[nitrochad]

I hope this is a good log!!

 

[nitrochad]

I hope this is a good log!!

 

[Bdsankey]

I'll check out your logs when I get home.

 

[Bdsankey]

The truck is slow to recover it seems. There's some missing PIDs that aren't here like TPS, reg duty cycle, amperage etc so I can tell this isn't my PID list but it shows us a glimpse.


Something in the fuel system is weak and it's not the regulator.

 

[2004LB7]

The truck is slow to recover it seems. There's some missing PIDs that aren't here like TPS, reg duty cycle, amperage etc so I can tell this isn't my PID list but it shows us a glimpse.


Something in the fuel system is weak and it's not the regulator.
View attachment 115312

Agreed. I think he needs to make sure the supply to the cp3 is solid and no restrictions or air leaks. Maybe even a return rate test too. Failing that he should look at a new CP3 or perhaps a lift pump if he wants to try something cheaper and easier

 

[nitrochad]

Truck ran great today. Changed fuel temp sensor so it's not reading all over the place 200* plus. Max today was 159*

 

[nitrochad]

Start up temp was 79* along with coolant temp

 

[nitrochad]

Well truck has been running great so far. Still going to install a Airdog 2 5g pump.