Head\Cam swap GTG

[MidwestSS]

does this make sense?
http://www.hptuners.com/forum/showpo...61&postcount=6

[Duct_tape123]

Sounds like cracked spark plugs. My brothers truck did the same thing, at idle and very light load it would run fine, under load(50%-WOT) It would miss and pop. Might double check them, cheap insurance.

[Maui4x4]

The LEDs looked like lasers on video, nice light show.

Truck sounded good, if it aint the plugs then maybe the tune just needs a once over.

[MidwestSS]

Thanks Maui.. i just HAD to put the lights on ! i couldnt help myself..
im wondering.. if the tune does have anything in it for the 2800 stall. would that feed into this issue?
ive called nelson 4 times and cant get anyone on the phone.

[banker099]

tuning for the stall shoulndt have any affect on it, give nelson time, he will get it figured out

[Duct_tape123]

I know a tuner that you can get a hold of every time if you're interested

[MidwestSS]

duct thanks but the pcm is locked

[RedHeartbeat]

Do you have another MAP sensor you can try on the engine. It sounds like how my truck was running when I had a 2 bar sensor on a 1 bar tune. I can't really tell what the readings where on your freeze frames in comparison to what the engine was doing. BTW, it was running pig rich when I had the wrong MAP sensor.