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.

Low speed surging

Old 12-09-2004, 06:02 PM
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Default Low speed surging

I have a 94 SE with a low speed surge. If I`m in bumper to bumper traffic or cruising very slowly, like in a parking lot or such, with a light throttle, it will surge. it`* OK above idle, runs fine on the highway, and if I kick it in passing gear it pulls fine. No codes and new fuel pump within the last year. Any ideas?
Old 12-09-2004, 06:49 PM
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Some possibilities:
Dirty throttle body
Faulty throttle position sensor
Bad fuel pressure regulator
Bad PCM, ICM
Old 12-09-2004, 10:07 PM
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could be the MAF sensor too.
Old 12-10-2004, 05:36 AM
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same problem on my 94. It feels like a misfire almost or runs rough and does surge. I thought it was my MAF or my cat but now I am sorta lost.


kennyz--- what kind of fuel economy do you get on the city or highway?
Old 12-10-2004, 06:35 PM
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Originally Posted by Hans
same problem on my 94. It feels like a misfire almost or runs rough and does surge. I thought it was my MAF or my cat but now I am sorta lost.


kennyz--- what kind of fuel economy do you get on the city or highway?
Hans, my mileage is almost exclusively highway and I get between 25 and 26 MPG.
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