Replaced o2 sensor, but service engine soon still on
10-03-2008, 05:08 PM
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Replaced o2 sensor, but service engine soon still on
Thanks for the help on the first thread. I replaced the o2 sensor, but i am still getting the same code. I cleared the computer by taking the positive connection off the battery. Could it be my map air sensor or my coolant. the car is a 1991 chevy camaro 305 tpi. Thanks again for the help.
10-03-2008, 10:45 PM
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Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: Replaced o2 sensor, but service engine soon still on
Did you pull an error code NUMBER?
10-04-2008, 06:32 PM
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Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
Re: Replaced o2 sensor, but service engine soon still on
That means you're running rich, not that the sensor is necessarily bad.
10-04-2008, 06:39 PM
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Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
Re: Replaced o2 sensor, but service engine soon still on
Lots of things, but if you have a lot of miles on your injectors, that would be where I would look first. Put a pressure gauge on the rail, turn the key on, then off, and see if the pressure holds.
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