im having problems when i accelerate. im not sure what it could be. its usually only when im at a stand still or going in reverse. if i give it to much gas, it just bogs out. i have to baby the throttle because if i give it to much, my engine will just stall. until i get to about 3400 rpm in second gear it sometimes sputters. other then that it drives smooth even while hitting boost.

Parts
RC 750 injectors

garrett gt3076r

brand new ngk sparkplugs (8)

godspeed intercooler and piping

aem ems v2

walbro 255 fuel pump

im only at 310hp at 6psi. i checked my spark plugs and they looked pretty bad so i replaced them today. didnt help the issue. however recently i did notice that two of my bolts that were from my turbo into the manifold backed out and broke. my turbo was just wobbling back and forth. the two bolts on the bottom that werent broke were pretty damn loose. i replaced the exhaust gasket and put new ones in. i was tuned by JMS in san antonio and they have a very high repuation for tuning. im wondering if the bolts that broke were causing me a exhaust leak when i was getting tuned. would getting tuned like that be my problem? if anyone has had this problem let me know. it is irritating the shit out of me.. thanks

 

anybody...?

 

Did it just start doing this or has it been like that since you got it tuned? Sounds to me like its something to do with the tune.

 

honestly i cant remember. after getting tuned i was so excited i didnt take notice to how the car performed under such low rpms. it sputters when going extremely slow. stop lights, stop signs, pulling out of parking lots ect.. and im not exactly sure if i had that exhaust leak while getting tuned or if those bolts backed out after the tune. i am running open downpipe and someone told me it could be a backpressure problem. my tuner said the same. but im not sure.

 

A back pressure problem? That is not the issue. Sounds tune related honestly.

 

x2

 

Have you spoke to JMS?

 

Yes, getting retuned for free. i want to wait till my new BOV, boost solenoid and new map sensor come in first. and the fact that it is almost a 3 hour drive for me. im hoping i can make better power after the retune.