bad knock sensor?
Thread Starter
On The Tree
Joined: Apr 2007
Posts: 132
Likes: 0
From: germantown, maryland
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?
TECH Enthusiast
Joined: Aug 2006
Posts: 542
Likes: 0
From: Memphis, TN
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?
Thread Starter
On The Tree
Joined: Apr 2007
Posts: 132
Likes: 0
From: germantown, maryland
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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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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