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HELP! knock sensor out


cbroo

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I took my car in for a 90k maintence check. The mechanic said my knock sensor is out. Anyone have advice on price, and what it affects. He also told me it's running rough. I know a little bit but not as much as most of you. Any advice or feedback will help. I have a 2001 LGT so it's a little older model.
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Knock Sensor detects knock (pinging, etc) in the engine and advances or retards timing to correct the knock. If the sensor is bad, the car will usually run very poorly....probably why it runs rough....

 

It's not hard to replace, but you'll need to clear the ECU memory once it's replaced to clear the code.

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cool, the guy didnt quote me a price, he said tomorrow he will know, any idea on price and labor. There probably not going to charge too much for labor but for the parts I'm a little scared. I have a catback exhaust and a K&N airfilter with a straight pipe running to my airbox. Will this cause this to happen frequently, or will it be fine after the service is complete?
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  • 3 weeks later...

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