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.

blinking check engine light Misfiring/Knocking at Idle only

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Old 02-02-2008, 01:43 PM
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That is not a bad coil. Out of spec by a little, but not bad.

Your plugs are fouled with fuel from not firing correctly. You also have the wrong plugs. Get rid of the platinums. Never run them in a supercharged or turbo engine.
Copper or Irridium ONLY.

The gas smell in your oil is because you weren't combusting the fuel in the cylinders, and it'* migrated past the rings into the oil.

I suggest changing your oil when this is all over.
Old 02-02-2008, 02:54 PM
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NGK TR-55 V-powers are less than two bucks a plug. I suggest losing the plats now, and selling them at half price to a friend.

Don't waste your money on Irridium. There'* frankly zero performance advantage, and only a lifetime advantage. But the V-powers will run you PLENTY long enough in that engine.
Old 02-02-2008, 03:25 PM
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Yes, plats are that bad in a supercharged engine (why I mentioned above a couple times).

No, gas in the oil won't cause a misfire. It'll cause excessive bearing and internal wear on your engine.

It can also detonate, and blow out the bottom of your motor. Get that oil changed.
Old 02-02-2008, 04:30 PM
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I am not sure why you bought more expensive platinums if you are on a tight budget, like willwren said, the NGKs are dirt cheep, I know I paid about less then $2 a plug.
Old 02-02-2008, 11:03 PM
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No, the resonator has no effect on the CEL at all.

With no cat, did he spoof the rear O2? If the previous owner took the converter off, it would ALREADY be straight piped.

You're not making sense. Describe what you're calling the res and cat.


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