Pommeyyy

Bought the car around 2 months ago and it started fine but idle was high so I cleaned the afm, throttle body and idle valve etc and the idle was better but then I think the cold start problems were amplified, could the car have been tuned whilst the afm and stuff were dirty thus causing it to run differently now?

Hey guys, having a problem on my 97 s2 r33, when starting the car cold it will start up fine but cannot be driven for 3 - 5 minutes as when the throttle is pushed the engine sputters badly, can anyone help or had similar issues? So far I have - Cleaned the AAC valve Cleaned the AFM Cleaned the throttle body Checked for vaccumm leaks Tried adjusting the idle screw Current engine mods on the car Haltech platinum ecu 750cc injectors Walboro 250 Top feed rail Gt3076r Spitfire coilpacks Z33 AFM Any help massively appreciated as it's slowly getting more and more annoying