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Knock Sensor Warning Light 900

posted by  someone claiming to be miracleman49 on  Mon Jun 30 14:37 CST 2003 [RELATED]

I purchased a 95 940 with 98k about 2 months ago. The car ran rough, no power on acceleration, and slight backfire on deceleration. Engine serice light indicated bad knock sensor. Took the one out of my 91 240 (same bosch p/n) and sure enough, cured all the problems. I do not believe there is a 2nd knock sensor on your car. Even if there was, it is awfully suspicious that it went bad one week after the other one. I would check your connection on the one you replaced. Also, double check the bolt spec..10 ft lbs seems low.


You did not say exactly how you "reset the computer." Did you disconnect the battery for 5 minutes or ???

please post your results, it would be interesting if you found another knock sensor.

good luck





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