misfire/bogging/backfire

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, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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nicklikesmilk
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Year and Trim: 98 Oldsmobile Intrigue
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misfire/bogging/backfire

Post by nicklikesmilk »

My 93 Park Ave has been fairly good to me over the 2 years i've had it, and lately it's been feeling bogged down. It seems to only happen when it's wet out (i.e., raining), and when it's freshly started. However, after it's warmed up, it still does it; just not as much. also, if i am gunning it, it backfires. I'm not sure what could be causing this. I have done most of a tune up lately. In the past 2-3 months, I have changed: fuel filter, O2 sensor, spark plugs, and air filter. Oil change is current.
1993 Park Avenue
200k, well-optioned, and running strong
Bing
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Re: misfire/bogging/backfire

Post by Bing »

Did you do wires too along with the plugs?
Just curious. :wink:
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willwren
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Re: misfire/bogging/backfire

Post by willwren »

That would be my first guess.
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nicklikesmilk
Posts like an LN3
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Posts: 500
Joined: Thu May 22, 2008 9:27 pm
Year and Trim: 98 Oldsmobile Intrigue
Location: Whitewater, Wisconsin

Re: misfire/bogging/backfire

Post by nicklikesmilk »

I didn't... #-o ...wasn't sure how much that would affect things. I guess that will be next. I'll keep ya updated
1993 Park Avenue
200k, well-optioned, and running strong
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