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High Revving Idle

cherring

By cherring,
in Engines & Forced Induction

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cherring Proficient

cherring

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I went and got my car registered today, yay it's back on the road. However on the way home from the Rego inspection the car started to idle really high, like clutch in to change gears or stop, revving at 3100rpm. I pulled over and a quick resaerch on my phone suggested a vacuum leak. Given that I cut the Atmospheric BOV off my intercooler pipe on the weekend and then put the pipe back in and one of the clamps was a bit dodgy, I thought this would be the problem, so I went out after I got home and picked up a new set of clamps for this section of the piping. After putting them all in the car was still revving at 2000rpm when I started it up. I put my foot on the throttle to see what would happen, and the pedal doesn't really feel like it moved smoothly, and looking under the bonnet, when I pressed the accelerator cable assembly closed the car went back down to about 900rpm and sounded normal. Then i put my foot on the pedal again, it felt stuck, then that it popped out and revved high again, staying high. The car was off the road for about 6 weeks while I fixed it up and sprayed it, could this assembly just be stiff and need servicing? Has anyone come across this before?

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https://www.sau.com.au/forums/topic/383035-high-revving-idle/
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cherring Proficient

cherring

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Posted

Ok it's fixed now. When I had the intercooler pipe off to try and source a new one while the car was in my mates backyard I stuffed it with papertowel to stop any foreign bodies going in there. It became the foreign body (missed a bit) and a big clump was stopping the butterfly from closing. Have to take it for a gentle spin after dinner to check all is fine, but seems to be with inital test.

Embarrased a litte, but live and learn.

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