LT1-LT4 Modifications 1993-97 Gen II Small Block V8

ABS INOP light stays on....

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Old 07-05-2009, 02:04 AM
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Default ABS INOP light stays on....

My light has never came on until recently (today). I just finished installing plugs and wires, car runs perfect but now the ABS light comes on. I know I was under and on top of the engine all day. Not sure if there's a sensor somewhere in the engine bay?? Or maybe somewhere by the two front tires?
Seems weird it comes on after change plugs..
Old 07-05-2009, 02:10 AM
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is your third brake light out?
Old 07-05-2009, 02:19 AM
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Originally Posted by hitmanws6
is your third brake light out?
Just checked my third brake light does comes on .
Old 07-05-2009, 09:51 AM
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Wheel sensors go bad often.
Old 07-05-2009, 11:17 AM
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Originally Posted by Nelapse
Wheel sensors go bad often.
So I imagine theres sensors on each wheel?
Old 07-05-2009, 11:43 AM
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The fronts
Old 07-05-2009, 12:18 PM
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could also be time for new pads/rotors. my abs would act up with the low trac coming on for no reason while stopping and the pedal getting hard and then jumping to the ground and back up and then the ABS INOP would come on after this happened 3 times. i replaced the rotors and pads and it hasn't happened again. they were changed out over 4 years ago.
Old 07-05-2009, 02:25 PM
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Originally Posted by xxRONNIExx
So I imagine theres sensors on each wheel?
Anyone have a part number for the sensor (94 z28)? My brake pad are fairly new...
Old 07-05-2009, 03:03 PM
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Anyone know how to remove the sensors? My ABS Inop light is on as well..
Old 07-05-2009, 03:07 PM
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Originally Posted by 1995blacktattop
could also be time for new pads/rotors. my abs would act up with the low trac coming on for no reason while stopping and the pedal getting hard and then jumping to the ground and back up and then the ABS INOP would come on after this happened 3 times. i replaced the rotors and pads and it hasn't happened again. they were changed out over 4 years ago.
This was also "cured" mine as well.
Old 07-05-2009, 07:21 PM
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After I changed my plugs wires coil and opti the ABS inop light came on mine too.. There has got to be a reason why we did the same thing
Old 07-05-2009, 08:23 PM
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Originally Posted by LaVy
After I changed my plugs wires coil and opti the ABS inop light came on mine too.. There has got to be a reason why we did the same thing
Has to be.... my pads and rotor are not that old
Old 07-05-2009, 09:31 PM
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After I put on LS1 brakes that were used (still needs some fresh pads and rotors just because, but they are in good condition) I get ABS INOP all the time. Sometimes when I pull the e-brake I get Low Trac.
Old 07-05-2009, 09:41 PM
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You can't replace the sensors. They come as a whole unit with the hub. They aren't that expensive. Might be a bad speed sensor. Car can't tell how fast it is spinning so ABS get disabled.



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