ok i had another post going but i know how it is when someone looks once they dont go back. I am REALLY stumped here on this one. I have been tuning for a while and have a few hundred cars under my belt here and an usually figure out the problem, but if i can i will man up and ask for help, so here we go again.
car is a 2003 vette. stock motor. car ran perfect when it came in.
WORK WE DID:
TS TQV2 cam
CNC'd stock heads
TUNE.
cars other mods
fast intake,CAI,headers,catback,160* thermo.
OK we got the car all together and started tuning it and i was getting an AUDIBLE DET sound. HPTUNERS doesnt pick it up BUT IT IS DET. or pre ignition. i have heard DET many time in FI car and know what it sounds like.
so i try to first just pull timing, but i have the car at only 13-15* and it still sound the same as if i have 25* in it.
OK what we have done to try to figure it out:
changed plugs TR55 gaped to .35
filled up with new gas 93 OCT.
checked to make sure the timing chain wasnt a tooth off.
changed injectors to 60 LBS injectors.(were stock)
changed intake gaskets.
changed o2's
so i still have this problem. also just for those that say "you sure you are hearing DET" YES when it DET it also is loosing a little power. i dont want to drive this car anymore untill i get this figured out. so any ideas?
FRAME 285 is 3rd gead, there it also shows that the knock sensors are working YET through that WHOLE pull it is DET YET the sensors are only picking up the first little ping and then nothing else.
. Other than this the car runs and drives great!