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Old Apr 3, 2010 | 02:34 AM
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Default Knock Sensor

Just got my Camaro SS back to day from getting my LS1 rebuilt...driving around tonight i got a P0327 knock sensor 1 low circuit imput...is this because im using 93 octane? are they bad? or is it because i have a small exhaust leak and its picking it up as a knock? the link will be fixed because im getting my SLP LM1 put on. Any help would be great!!

Thanks guys!
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Old Apr 3, 2010 | 03:18 AM
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fix the exhaust leak and see what it does (thats the easy/cheap fix). 93 octane doesn't hurt.
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Old Apr 3, 2010 | 03:25 AM
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Did you wash the engine recently? Chances are you'll have to replace the KS.
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Old Apr 3, 2010 | 04:42 AM
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Originally Posted by Predator
Did you wash the engine recently? Chances are you'll have to replace the KS.
Or the harness for the sensors got pinched.
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Old Apr 3, 2010 | 05:47 AM
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and exhaust leak couldn't cause knock... was this light on immediately after the rebuild? seems like an installation issue
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Old Apr 3, 2010 | 07:48 AM
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Originally Posted by bene
Or the harness for the sensors got pinched.
If the harness was pinched you'd probably throw both codes (PO332). Depends where it's pinched I guess.
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Old Apr 11, 2010 | 11:56 PM
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I had both of my knock sensors **** out on me. Its probably due to them being old and needing replaced. I drove on mine f***ed up for over 6 months and never noticed a differnece. Have fun replacing them. If you do one then do them both cuz the manifold has to come off.
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Old Apr 12, 2010 | 02:48 AM
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Originally Posted by KS Z28 Camaro
I had both of my knock sensors **** out on me. Its probably due to them being old and needing replaced. I drove on mine f***ed up for over 6 months and never noticed a differnece. Have fun replacing them. If you do one then do them both cuz the manifold has to come off.
Throwing the KS code(s) causes a constant 4 degrees of knock retard so it's not something you want to live with. Yes, definitely swap both.
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Old Apr 12, 2010 | 07:47 AM
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wouldnt be a bad idea to have the harness for them also. I just changed mine and cracked both connectors during removal. They are hard to reach and crack easy from the heat. its like a 50 dollar part from the dealer
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Old Apr 12, 2010 | 07:59 AM
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Originally Posted by 68chevypu
wouldnt be a bad idea to have the harness for them also. I just changed mine and cracked both connectors during removal. They are hard to reach and crack easy from the heat. its like a 50 dollar part from the dealer
I was going to mention a harness since I messed mine up trying to remove it and had to replace it (same as you, the connectors), but I thought maybe I was just careless. Actually I had to replace my harness twice. The other time it got pinched under the intake, I was careless routing it before I replaced the intake.
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