Symptom of failing 2-wire PWM idle valve?
Posted: Fri Jul 12, 2013 5:25 am
Hi,
I have 3 bosch 2-wire idle valves. 1 does not respond at all, must be dead. 1 is inverted and the 3rd is normal. They were all built for the mk2 VW Corrado.
I'm using the normal curve unit right now and it hasn't been a long time on the MS but it has started to not go to cranking position at start-up. It seems to stay in the last running position. It will open up to the cold running state eventually. Has anyone experienced this?
I have 3 bosch 2-wire idle valves. 1 does not respond at all, must be dead. 1 is inverted and the 3rd is normal. They were all built for the mk2 VW Corrado.
I'm using the normal curve unit right now and it hasn't been a long time on the MS but it has started to not go to cranking position at start-up. It seems to stay in the last running position. It will open up to the cold running state eventually. Has anyone experienced this?