Surging idle not likely related to DME temp sensor, and before changing it you should probably test it first.
More likely you have a vacuum leak (or issue with ICV) as mentioned in Clarks Garage Engine Troubleshooting
https://www.clarks-garage.com/shop-manual/ts-01.htm#idle-surge
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Tyler from Wisconsin, 1989 944 S2 on Megasquirt PNP
Last edited by walfreyydo; 01-23-2024 at 12:08 PM..
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