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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-09-2004, 09:31 AM   #11
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Quote:
Originally Posted by jr's3800
Do me a favor... disconnect you negative battery cable and allow the PCM to reset... After doing so check and see if any of those codes come back right away... I have pretty much never seen a knock sensor fail...
I just reset the battery two nights ago, so these are all fresh codes.

But I too am wondering how long it would take to replace a knock sensor on a 3.8...
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Old 02-09-2004, 11:45 AM   #12
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I've never done one, but I do know it'* on the back side of the block on the Series 1. Series 2 has two knock sensors.
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Old 02-09-2004, 12:15 PM   #13
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its under (kinda the exhaust maniflod)
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Old 02-10-2004, 12:23 AM   #14
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code 43: Electronic spark control circuit OR Knock sensor problem

is the ESC a likely thing to go?
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Old 02-10-2004, 10:12 PM   #15
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i was wrong the knock sensor is on the front of the block
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Old 02-10-2004, 11:07 PM   #16
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Where exactly is that?
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Old 02-10-2004, 11:33 PM   #17
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left and above the starter front side
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Old 02-11-2004, 12:15 AM   #18
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Quote:
Originally Posted by jr's3800
Yeah the sensor is on the back of the block, and it just unscrews, you should be able to get a socket on it for removal and replacement, it will have a single wire connected to it... The one thing that stikes me as odd is that I have pretty much never seen a knock sensor go bad... Anything is possible these days... Good luck and let us know if the knock sensor gets rid of that code 43
I had a knock sensor go bad on my 88 LeSabre and my brother'* old 92 Bonneville.. I know it was that because I pulled the codes and I got the same thing so I replaced the knock sensor and after that the SES light went off immediately after I changed them out.
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Old 02-11-2004, 12:18 AM   #19
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Quote:
Originally Posted by joe
i was wrong the knock sensor is on the front of the block
Hmm.. That looks like it could be the knock sensor but it doesn't look just like the two were on my 88 and my bro'* 92. ours had a blue wire going to it and looked slightly different compared to that. I'm not sure what it was that you're showing though.
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Old 02-11-2004, 02:49 AM   #20
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thats the only one i found i really didnt look on the back side
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