rough road sensor?
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01-17-2007, 07:44 PM
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01-17-2007, 08:06 PM
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01-18-2007, 07:22 PM
RE: rough road sensor?
Gents,
There is no rough road sensor. The way it works is that when a vehicle is driven over a washboard, potholed, or otherwise crappy surface, there is a resonance that occurs at the ABS sensor-to-target wheel location. If this is high enough in amplitude and the variation in air gap is severe enough it will throw a rough road code that the computer stores. In addition --- the computer programming is such that it will disregard any indication from the engine crank position sensor that normally would trigger a "multiple mis-fire" code --when the resonance is present at a ABS sensor/trigger wheel. This is a safeguard to avoid throwing the Check Engine Light on if the crank sensor itself is experiencing a vibration caused by the rough road conditions.
regards,
Geoman
www.eurotekapg.com
There is no rough road sensor. The way it works is that when a vehicle is driven over a washboard, potholed, or otherwise crappy surface, there is a resonance that occurs at the ABS sensor-to-target wheel location. If this is high enough in amplitude and the variation in air gap is severe enough it will throw a rough road code that the computer stores. In addition --- the computer programming is such that it will disregard any indication from the engine crank position sensor that normally would trigger a "multiple mis-fire" code --when the resonance is present at a ABS sensor/trigger wheel. This is a safeguard to avoid throwing the Check Engine Light on if the crank sensor itself is experiencing a vibration caused by the rough road conditions.
regards,
Geoman
www.eurotekapg.com
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