Hi all,
1994 940 turbo. Replaced temperature sensor for gauge. I also removed the other temperature sensor for the ECU to see its condition. The probe is blackish and I am wondering if I can make it shiny like new sensor with some abrasive cleaner. Please advise. Does cleaning of the probe will remove some kind of coating. I noticed on the new sensor it looks it does not have any coating. A while back check engine light came up with a code for EGR valve issue. Is there a way to test this valve.
Thanks
Ram
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