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Old October 17th, 2010, 10:41 PM
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Logan Feldman
1997 D90
Join Date: Mar 2008
Location: manhattan , ny, usa
Posts: 32
nas 97 d90 abs ecu

my check engine light keeps coming on due to my abs ecu beinf fried.. is this part a safety device in any way, does it effect the cars perfornmance in anyway , or is it just a way to avoid check engine light from illuminating while off roading..

very expensive part, is it worth replacing?

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Old October 18th, 2010, 09:44 AM
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1955 107
Join Date: Sep 2009
Location: WA
Posts: 102
My understanding is that all the abs ecu does is send back a false message saying everything is ok and that it performs no real function outside of that... it seemed that mine wasn't working so I disconnected it for a while and reconnected it about a month later, and after a day the check engine light went off and everything seemed to be working again.

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Old October 18th, 2010, 10:33 AM
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Keith Armstrong
Join Date: Jun 2010
Location: Land Between the Rivers
Posts: 626
We had "issues" with that on our '97 when I bought it.

As I understand, it's supposed to indicate a fault with the "rough road" sensor.

Since they were doing the work for free, I let the local dealer fuss with it several times.

Ultimately it turned out to be a bad ground that the ECU needed.

I hate to say anything in too loud a voice.....but it's been fine for the past eight years now.
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Old October 24th, 2010, 09:51 PM
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Join Date: Oct 2003
Location: MA
Posts: 172
Rough Road Sensors

On this subject......Has anyone ever found a way to eliminate or bypass the wheel sensors? I have a set of HD CVs without tone rings and get a code every so often. Is there a wiring "trick" or resistor that can be added to eliminate pain these sensors ceate.
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