Code on GXP
Thread Starter
Teching In
Joined: Aug 2010
Posts: 28
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Code on GXP I was driving my car home this past weekend after going to the the Grey Cup and on my way home after about 400km of driving my engine light came on when I got home and coded it i got P0326 Knock sensor 1 circuit (bank1) any help on whats caused this or how to fix it would be much appreciated
That's a pretty uncommon code, but I imagine it means that the knock snesor either is not responding or out of spec.
Do you have any means of monitoring knock retard while driving? If you do, then I would clear the code and drive it and see if you're getting any KR. I wouldn't drive it hard, though, just in case. If you have the stock tune, then you should be seeing frequent KR in the 3-6 degree range. It varies with temp, fuel quality, and altitude, though. But if you're seeing very little knock retard or none at all (assuming the factory tune is installed), then it's quite possible you have to replace a knock sensor.
For the record, I've never seen a knock sensor fail, but it's worthwhile to troubleshoot the problem, rather than just replace the sensor, which is mounted to the valley cover UNDER the intake manifold.
Do you have any means of monitoring knock retard while driving? If you do, then I would clear the code and drive it and see if you're getting any KR. I wouldn't drive it hard, though, just in case. If you have the stock tune, then you should be seeing frequent KR in the 3-6 degree range. It varies with temp, fuel quality, and altitude, though. But if you're seeing very little knock retard or none at all (assuming the factory tune is installed), then it's quite possible you have to replace a knock sensor.
For the record, I've never seen a knock sensor fail, but it's worthwhile to troubleshoot the problem, rather than just replace the sensor, which is mounted to the valley cover UNDER the intake manifold.
TECH Enthusiast
Joined: Nov 2008
Posts: 622
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"I have no way of measuring knock" You CERTAINLY DO!
If you have a predator/trinity, it can log it for you or you can select it and watch it real time...
I think you just got a tank full of swamp water somewhere. Put two little containers of gasline antifreeze and fill it with some good 91 or better and enjoy!
If you have a predator/trinity, it can log it for you or you can select it and watch it real time...
I think you just got a tank full of swamp water somewhere. Put two little containers of gasline antifreeze and fill it with some good 91 or better and enjoy!
Let us know how it goes.
TECH Enthusiast
Joined: Nov 2008
Posts: 622
Likes: 1
You can also see the sp gravity of the fuel on board with the predator and the actual knock sensor.
Also just incase you are unaware.. in Canada the highest octaneis 91 everything above that is achieved over that is done with ethanol, you may have gotten to much, more than 10%
Also just incase you are unaware.. in Canada the highest octaneis 91 everything above that is achieved over that is done with ethanol, you may have gotten to much, more than 10%
