car runs when it wants to

[saturn345]

hey everyone. my buddy has 95 eagle talon tsi fwd. has 16g turbo, upper intercooler piping and j pipe. greddy type rs blow off vavle. 550cc injectors, 2.5 magnoflow exhaust. manul boost controller. kn intake kit. afc2.

his car dosent want to run. like at 1500 rpms if you start to get on it. it sputter really bad. and wont go over 2000 rpms. like to much fuel. at first we though it was a boost leak but checked it all out. didnt find anything. but he has been having problems with throttle sticking on the car. like it will be at 6% on afc. we checked it for codes the other day and found 3 codes. one was the tps sensor malfunction. bank one o2s. and knock sensor. well yesterday. when it started actin up like it did. the knock was reading at 6 and the core was -13 to correct it. and throttle wasnt readin. cause he has been having problems like . be driving it and the throttle on the afc will stop readin. then come on when it wants. dosent do it all the time. i have no clue. goin to get tuned this comin friday at PSI motorsports. so we need to fix this first before we go. we can use all the help we can get from yous.


chad

 

[justin0469]

get a new throttle position sensor and knock sensor from dsmparts.com once those are fixed check out your afc settings and see what can be changed so that its not going crazy