K, new boosted SOHC setup , with stock O2 sensors still throwing o2 CEL's/....? i just fixed the other CEL which was MAP and i just purchased a synaspe missing link to fix that. but its still throwin 2 o2 codes. ok so my first question is because there is 2 codes is it throwing it in to limp mode or is somthing seriously wrong with the turbo setup. I have tried fixing it and driving it three times. every time reseting the comp but it still starts acting up as soon as the CEL's turn on about id say 45sec after the car starts. so yeah does this mean i need a wideband or what? cause its only throwing the 2 o2 cels. any help would be appriciated.

 

Can I ask what you have for controlling fuel? FMU, piggyback, or a prayer?

We also need to know more about your turbo setup. Turbo size? Exhaust setup???

 

ok i have ordered an FMu, i have a walboro255, and im waiting to score injectors, T3/T4 turbo a cheap one, and a drag manifold, i have 2.5 charge pipe and a 3" downpipe then goes to 2.5" before the muffler. what do you think. the FMU will help that much? is it that necesary?

 

bump..... i still need help