zebo87

ok so heres the problem. first if cold it takes at least twice to keep the car going after starting. once it can run on its own the problem really turns on. if i floor it, it bogs down insteda of revving up(also does this if im cruising). once its idling and im ready to go it sputters bad. i have to really baby it for about 5-10 minutes to get it to act normal. once its warm it does okay. it wont accelerate to its potential and i cant get it past 3500 rpm. so heres what i have. gt-40 engine. cobra intake, cai, 75mm maf(cal for 19lb inj) and 75mm tb, shortys, off-road h pipe, flowmaster 40s. what ive checked so far-maf, iac, vac leaks, timing, fuel filter, fuel pres reg, full tune up. im not sure where to go next. maybe fuel pump. im at a loss now. thanks in advance.

MustangBradley

First step is to pull codes from the computer. Sounds like a bad TPS but you won't know until you check codes.

http://mustangefiswap.blogspot.com/

zebo87

i pulled codes a while ago but im gonna have to do it again. forgot them already and want to make sure no new ones.