Knock sensor error
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Knock sensor error Started logging my GTO & right away noticed the KS was stuck at 3* knock. Under WOT it will rise to 5*, no higher.
So to test the KS I started the logger to see what it read. It was at 0* knock. as soon as I started the engine it jumped to 3* as it was reading prior. There is some valvetrain noise but I don't thing it is enough to cause this.
I have a new sensor & will try replacing it, but before I do I will take of the valley cover & inspect the harness, lifters & such, but I wanted to get others input if this is a common occurrence.
I uploaded scan & DTC's
So to test the KS I started the logger to see what it read. It was at 0* knock. as soon as I started the engine it jumped to 3* as it was reading prior. There is some valvetrain noise but I don't thing it is enough to cause this.
I have a new sensor & will try replacing it, but before I do I will take of the valley cover & inspect the harness, lifters & such, but I wanted to get others input if this is a common occurrence.
I uploaded scan & DTC's
Last edited by gtfoxy; Dec 6, 2015 at 06:07 PM.
Thread Starter
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Joined: Apr 2009
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Thanks Joe. I appreciate the response. I should just PM you from now on, LOL.
Researching it I found this. http://www.obd-codes.com/p0332
I am going to clear the codes & do all of the above mentioned.
One question I have, if you don't mind, in addition is in regard to LTFT's. I got this car modded but not thoroughly tuned. The LTFT's are going from +8-18%. I am going to change the O2's and I have a LM1 to add to it once I get a replacement O2. (Gave it to a friend a week before I bought the car). I doubt it is an O2 issue since both are reading near identically.
So the question is, in your experience, can a ported LS6 intake & Fast TB vs stock LS1 change VE that much to result in that much of a LTFT variance? Car supposedly has ported heads & LS9 cam.
Researching it I found this. http://www.obd-codes.com/p0332
I am going to clear the codes & do all of the above mentioned.
One question I have, if you don't mind, in addition is in regard to LTFT's. I got this car modded but not thoroughly tuned. The LTFT's are going from +8-18%. I am going to change the O2's and I have a LM1 to add to it once I get a replacement O2. (Gave it to a friend a week before I bought the car). I doubt it is an O2 issue since both are reading near identically.
So the question is, in your experience, can a ported LS6 intake & Fast TB vs stock LS1 change VE that much to result in that much of a LTFT variance? Car supposedly has ported heads & LS9 cam.
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Joined: Apr 2002
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From: So.Cal.
Knock sensor error heads and cam can make that much difference.
Also, with heads/cam, if you're running a MAF, you'll have to correct both VE and MAF tables (independently of each other)
(MAF is upstream but still needs correcting because heads/cam changes the intake resonance characteristics which affects MAF dynamics).
