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bad knock sensor?

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Old May 8, 2009 | 09:44 PM
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Default bad knock sensor?

car is throughing a low voltage code on knocksensor bank one, and now the car also stumbles at light throttle and part throttle and now its basically acting like its missing, anyone know if the two are related?
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Old May 9, 2009 | 04:07 AM
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no takers yet huh somebody got to have had this happen to them before
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Old May 9, 2009 | 11:44 PM
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bump anyone?
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Old May 10, 2009 | 11:22 AM
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I'd guess the car is stumbling that it is retarding the timing because it thinks there is knock. I'd try to replace that sensor if you are sure that is why you have the code. You haven't changed anything recently have you?
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Old May 10, 2009 | 06:44 PM
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no i havent it just started stumbling and then it started throwing the code for low voltage input on knock sensor bank one but its not throwing codes for a miss fire its really odd
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Old May 11, 2009 | 08:15 PM
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Originally Posted by pewter02z28gs
no i havent it just started stumbling and then it started throwing the code for low voltage input on knock sensor bank one but its not throwing codes for a miss fire its really odd
Kind of funny, my Avalanche just started doing this, but not missing as bad, just low on power. I used the flash scan (EFILive) to verify. Gas milage went down as soon as the light came on.
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Old Jun 23, 2009 | 08:32 PM
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Default same here!

MINE IS DOING THE SAME EXACT THING TODAY!!LOL It stumples at light to part throttle and is a low votage only code for the knock sensor!
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Old Jun 24, 2009 | 06:39 AM
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hmm, My car has been stumbling, dropping cylinders and acting up since last fall. I also threw a code for Knock sensor voltage low, then the SES light went out for a while. My missing problems got worse, then the SES light came back, this time, both knock sensor low voltage codes are set. I'm not holding my breath, because my misfires are worse and I have a cylinder that drops, then comes back randomly. but I did order 2 knock sensors, a wiring harness and a CAM Position Sensor since I am going to have the intake off anyway.
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