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Old 10-15-2021, 05:57 PM   #1
Racemysaturn4me
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1997 SC2
Default 1997 Saturn SC2 Knock Sensor Issues

Hello everyone. I've been having an issue with the knock sensor. I've had it replaced twice in the last few weeks and still getting the check engine light and code showing knock sensor issue. Anybody know what could be wrong? All the new sensors can't be bad. Could it be the harness wires? Any help is appreciated!
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Old 10-15-2021, 06:27 PM   #2
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Default Re: 1997 Saturn SC2 Knock Sensor Issues

Any symptoms to report or just codes?
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Old 10-16-2021, 01:54 PM   #3
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Default Re: 1997 Saturn SC2 Knock Sensor Issues

So far just codes.
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Old 10-16-2021, 05:41 PM   #4
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Default Re: 1997 Saturn SC2 Knock Sensor Issues

Quote:
Originally Posted by Racemysaturn4me View Post
So far just codes.
I went through this last year... It turned out to be - believe it or not - a broken spark plug ceramic.......

As I understand it - the knock sensor works sonically. Check for stuff rattling near the engine. ( body rattles shud be isolated by the engine mounts)


Good luck - it can be a bugger to find....
...
Currently owned
93 SC2 M(anual)
96 SC2 M
98 SL2 A(uto)
99 SC2 A
01 SC2 A
01 SC2 M
02 SC2 M
02 SL2 A
02 SL2 M
parts
2 94 SC2 parted out
2 96 SC2
98 SC2 - rusty frame minus engine.
98 SL2
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Old 10-16-2021, 06:39 PM   #5
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Default Re: 1997 Saturn SC2 Knock Sensor Issues

The 2 knock sensor codes I can find, since OP can't take a hint and tell us what code(s) they have:
P0326 is too much noise (things like onlinebiker mentioned)
P0327 is generally wiring issues (loose connection somewhere in the wiring including sensor loose on block) but, worst case, indicates a bad PCM.
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