Strange surge - 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 09-02-2004, 08:27 PM   #1
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Default Strange surge

Coming off an on-ramp last night, I had the Perform Shift pushed. Floored it at about 33, shifted into first, gidy-up. Shifted into second, went FLAT!! RPMs eventually went up to 3500, then the power came on smoothly and seemed stronger than usual. The tank was nearly full, so even if my new strainer was on wrong, I'd still get fuel. I can't figure it out.
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Old 09-02-2004, 10:33 PM   #2
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I would think fuel related. Do you have a scantool? Have you had a chance to take o2 readings?

A side question; how are those 24lb injectors working for you? Had a scantool on since you installed them?
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Old 09-04-2004, 05:48 PM   #3
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I've been considering a scantool recently. Or a laptop if I can find a cheap program that will allow use with a USB connector.

Watching my A/F gauge, I haven't seen it go lean on the top end since I put in the new pump. But the originals are getting put in when thay come back, anyway.

Oh, I wasn't looking at my gauge when this happened, so I don't know what was going on at that time.
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