Pelican Parts Forums - 81SC Fast idle when cold

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81SC Fast idle when cold - normal??

Sorry guys for dregging up an old topic but I need a sanity check. My '81SC starts, runs, and idles great but... On cold start is zips up to 2000 RPM and stays there for at least 5 minutes as the car warms up. Is this normal? Once warm, it idles smooth at about 1000 RPM. It did this during the warm months as well as cooler so it's not ambiant temperature related.

I've only had the car about 4 months and just assumed it was part of the warm up system with the CIS but I'm beginning to wonder if somethings not right.

The warm up regulator was replaced by the previous owner. If this is not normal I'll probably start troubleshooting the CIS system. Based on some searches I'll probably take a look at the AAR first.

mike

1800 ~ 2000 is good. You have the signs of a healthy CIS system.

I would agree that is normal. Same thing on my 82SC.

JW

If you want to bring the cold idle down a bit, do a search on how to tweak the AAR (aux air reg). It's an easy job.