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Erratic engine speed 400 1993

posted by  someone claiming to be Caz on  Mon Dec 15 23:30 CST 2003 [RELATED]

On a different forum, someone has said it sounds like the Idle stepper motor has gone. This seems to fit as my boyfriend "gently tapped" this bit with a hammer last night and it seemed to sort it out. Drove it to work this morning no probs, but when I parked the idle had risen slightly to 1100rpm. I reckon this bit must be on the way out, or sticking or something.

Also, I did hear on another forum that the temp gauge you see on the dash is not the same as the signal that goes to the ECU. The temp gauge on ours hasn;t done anything funny.






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