Runing rough at idle in P/N and on decel (11/14) - Page 6 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

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 11-14-2007, 11:22 PM   #51
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So, I was messing around in TunerCAT RT...
I noticed a timing table that is based on Load vs. Coolant Temp.
I started increasing the lowest LV8 column (No load) with respect to temp and the idle got worse and worse.
Then, I jacked it way down and it purred like a kitten.
No misfires at idle anymore.

I'm running around 8* of timing at idle in park now according to my scantool.

I have a feeling this may be some sort of bandaid fix for my compression issue.. But, for the time being, it'* making me happy.

What should my timing at idle in P/N be?

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