89 Bonneville LE code 26 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-03-2004, 04:43 PM   #1
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Default 89 Bonneville LE code 26

Hey I was wondering if someone could help me I got a 89 bonneville that keeps throwing code 22,26 and the codes for 2nd 3rd and 4th gear switch. the car spits and spuders during idle and when you are driving it up a hill it will shake a little and spuder and try to downshift , replaced the computer, TPS, plugs, wires. none of this stuff made a difference just wondering if the TPS is adjusted wrong or if something else may be the case, thanks for the help.
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Old 08-04-2004, 11:07 PM   #2
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DVM should read .38-.42v at idle and over 4.2v at wide open throttle. Should also be pretty linear in between.
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Old 08-08-2004, 07:15 PM   #3
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what does the volt meter have to be set on to read the setting between .33 and .42 I dont think the meter goes down that low it just shows -1
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