PCM Reflash ?
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Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
PCM Reflash ?
I think i may need to reflash my truck. what would be the reasons for someone to do this i have a superchips pro. i know i know it was a wast of $ but i think it may have messed my PCM up what do you all think
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Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
shifting funny never the same way twice,giving it the go pedal someetimes it will fall flat on it's face or get up and hall **s,GP'S fire some times(new GPR),to me the truck does nt run as smooth or as hard as it use to
Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
you can just remove the chip, that puts the stock program back in. i cant see the program causing intermittant problems liek that. plus the chip does not change glow plug control.
at 172k are your injector o-rings origonal? could be leaky causing the performance issues with the chip on top of a 14.7k.
remove the chip and the 14.7k and see how the throttle response is. let it warm up and then hold the pedal on the floor, see what the truck does. if all is well the truck will rev right to the limiter fast and smooth. if it is leaky then it wil stutter and stumble and have smoke from the exhaust
at 172k are your injector o-rings origonal? could be leaky causing the performance issues with the chip on top of a 14.7k.
remove the chip and the 14.7k and see how the throttle response is. let it warm up and then hold the pedal on the floor, see what the truck does. if all is well the truck will rev right to the limiter fast and smooth. if it is leaky then it wil stutter and stumble and have smoke from the exhaust
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Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
okay put back to stock and removed 14.7k held pedal to floor RPM went to 2500then struggled a bref sec. then jump to 3000 RPM should it do that or shuold it go all the way to redline. does this sound like a fuel problem
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Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
my hpop has a small leak if that matters.also i started the truck and unpluged the ICP and it stummbledjust a sec. then ran like it was still plug in should there be a bigger dif.
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Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
is the pump leaking or just the resevoir? i doubt that is the problem. the icp test you did is normal, no problems there either. in my opinion the stumble is caused by the o-rings
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Thread Starter
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Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
o-ring on big plug on the pass. side top under wireing harnness.wheres a good place to get injector o-rings and will it hurt anything to drive it like this if i put it off till this spring. i hate on this truck when it's cold LOL!
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