Rough Idle

[Mohammed_A]

Hi

im experiencing some problems with my s50b32 euro motor.... the car idles very rough and struggles to start on the first swing but drives fine, only sometimes it misses under light throttle and when more throttle is applied the miss goes away..

if i unplug the computer box and leave it off and plug it back in then it idles perfect and starts up on the first turn, only after driving the car slightly hard does the idle get rough again. and starting suffers also.

Please help

[apexhead]

Are there any codes in the DME? Vacuum leak possibly or there is sensor offending the system.

[Mohammed_A]

i doubt its a vacuum leak coz its fine for a while, check for codes, no faults

[Aatos]

o2 sensor or MAF.