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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 11-06-2010, 03:03 PM   #1
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My check engine light comes on sporadically..... the symptoms of my car is improper acceleration, i have to rev up 4 to 5000 rpms to increase my speed. the engine surges and the car gradually gets faster. There'* no jerking or bucking as the car switches gears. It just goes into gear slowly but surely. could this be because of a bad tps or transmission problems ...should i change the transmission filter and fluid...it engages into drive and reverse with no problems.
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Old 11-06-2010, 05:48 PM   #2
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What year and type car do you have. Kind of guessing in the dark here. My first advice is go have the car scanned and post up the codes. Then we can answer your questions.
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Old 11-06-2010, 08:34 PM   #3
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94 bonne se
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Old 11-06-2010, 08:42 PM   #4
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Old 11-06-2010, 11:36 PM   #5
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I don't believe this diagnostic procedure will work on this particular vehicle, as the Bonneville switched to OBD 1.5 in 1994, and retained it through the 1995 model year. Only special scanners specifically capable of pulling codes from GM 1.5 can retrieve these codes. Simply put, it is an OBD 2 plug, that puts out OBD 1 codes.

DO NOT attempt the procedure outlined in the above tech article.
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Old 11-07-2010, 12:46 AM   #6
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Ack, yes, that was when they used OBD1 protocol and OBD2 plugs. For that you will need a OBD1 code reader with a OBD2 adapter cable.
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