iain_stewartrs

before the boost kicks in in my rs it is holding back bigtime! i changed the plugs leads dizzy cap and rotar arm still nothing then i changed the coil and still nothing ,,, i done a compression test last night results were

149psi
139psi
140psi
133psi

any ideas on wat could be my problem

pani_k

iTrader: (1)

fuelling I'd hazard I guess at. Why dont you get it rolling roaded and then try to diagnose the problem that way if its an ecu fault.