CIS warm-up regulator loosing residual pressure?
Has anyone had this problem? seems like I might have a WUR that is leaking residual fuel pressure off after car is stopped.Here is my symptom: After engine is warm and left to sit for aprox 20 minutes, restarting the engine is fine but looses rpm and dies if not given throttle for about 10 seconds. If car is restarted after 5 minutes, it is ok. I have replaced the fuel pump check valve and accumulator. Could it be the WUR is not holding pressure and bleeding back to the tank after this amount of time?
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