now it runs like crap, whats up now.
04-20-2006, 11:24 AM
#1
Staging Lane
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now it runs like crap, whats up now. 
rebuilt top end of motor. quite a few mods. now it runs like chat misses and shutters. pulled these codes. p0343- cam position sensor A voltage too high tor the current engine operating conditions. p0155 mulfuntion in heater circuit for oxygen sensor 1 bank 2. installed new comp cam advanced 4 degrees with comp lifters, forged one piece pushrods. stage 3 heads with oversized valves, new 600 lift spring tt retainers, 30 lbs injectors. ported and polished throttle body, slp underdrive - 85mm mass, ngk iridium plugs, msd race wires, double timing chain, ported polished ls6 oil pump. i do believe thats it. it tried to put down everything. but it is using the stock pcm and tune for now. please help ive tried everything i can think of. 
04-20-2006, 04:42 PM
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Staging Lane
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i degreed the cam about 4 times and it came up right each time so i hope that isnt the problem. the cam was advanced 4 degress so what would it hurt being off +/- a degree or would it. thanks for the input.
04-23-2006, 06:14 PM
#5
Originally Posted by RALLDU
p0343- cam position sensor A voltage too high tor the current engine operating conditions.
30 lbs injectors
stock tune for now.
30 lbs injectors
stock tune for now.
personally I would say get at least a starter tune in there to at least sort out some of the simpler stuff like idle & minor code deletions. Then go from there.