Originally Posted by
hogdog
I own a 2.0 ESP so I don't know too much about dump valves but on an ordinary 2.0 the symptoms would be exactly the same as having a dodgy idle control valve.
i dont think a dv would cause it to stall it is just there to keep the turbo running whilst changing gear (dump air due to no pressue from engine)
common symptom from like you say aicv idle control valve on throttle body.
when throttle body closes on idle the control valve opens to let the engine breathe common sense no air no bang