why when i floor it......... - 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 06-09-2010, 10:02 PM   #1
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Default why when i floor it.........

ya.so when im going to accelerate harshly in my 92 ssei, it will cut out,sometimes backfire mildly,and produce an ses light.if i baby it for a minute the light goes away. it has a fresh fuel pump,filter,and pressure regulator.the ecm has like 1500 miles on it 2. what the... ?
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Old 06-09-2010, 10:20 PM   #2
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Have you scanned the code to see what it is? That would help us diagnose the problem.
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Old 06-09-2010, 10:54 PM   #3
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tryin that right now.got a bunch! 12,15,18,21,22,31,34,42,57,58,66.
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Old 06-09-2010, 11:00 PM   #4
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Holy cow..

15:Coolant Sensor Circuit
18:Cam/Crank Error
21:Throttle Position Sensor (TPS) Signal Voltage High
22:Throttle Position Sensor Circuit (Signal Voltage Low)
31:PRNDL Switch Circuit
34:Mass Air Flow Sensor (MAF) Circuit
42:Electronic Spark Timing (EST) Circuit
57:Boost Control Problem
58:Security System (Fuel Enable Circuit)
66:Low A/C Refrigerant Charge

I'm going to say a possible electrical issue. Check ground busses and battery cables for corrosion. One of the gear heads should be in here soon to give you a better answer.
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Old 06-09-2010, 11:08 PM   #5
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crazy right! drivin me nuts.i soooo love this car.have only had it for a month.my girl keeps tellin me to sell it,but im soooo convinced that i can figure it out and have a sweet machine. just need some help.
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Old 06-09-2010, 11:11 PM   #6
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If you have the ability, I would also try clearing all those codes then checking it again after a drive to see what comes back.
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Old 06-09-2010, 11:18 PM   #7
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how do you clear the codes?
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Old 06-09-2010, 11:22 PM   #8
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I believe if you disconnect your battery for a while it should clear the codes. Something like 15 minutes should do the trick.
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Old 06-09-2010, 11:23 PM   #9
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cool will try it.thanks. let ya know in 15 or so.
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Old 06-10-2010, 02:58 AM   #10
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ok,58 was the code after i pulled the battery cables for a couple hours.security? what do i do about that?
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backfire, cuts out, harsh acceleration, ses light

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