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Porsche944Owner Porsche944Owner is offline
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Join Date: Apr 2025
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Porsche Crest 944 Cold start issue

Hello,
I'm having a problem with my 1983 944 having trouble starting cold and idling rough until the car warms up. I did some research and came to the conclusion of the Auxiliary Air Valve, as the car runs perfect after warming up, and starts great too. I'm at the point of testing the AAR, putting in the freezer to watch it open, letting it sit in room temp to let it close, and hooking it up to electrical leads to let it close more.
So does this mean the AAR is not the problem?
How much should it be opening as that should've been the problem?
Where to go from here? Order a rebuilt one from 944online?
Thanks for any help
Old 07-01-2025, 07:37 AM
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