The story - Our '90 744 Turbo has had its ABS light light regularly for a year or so. It was not driven regularly.

I decided to keep it one more year and had the brakes done. New pads, rotors, sensors and rings. (The rings were in very poor shape and one of the sensor wires had been damaged by a tire rubbing on it.)

Yeow! the light came on right away! A technician I trust checked all things he suspected, under the dash, under the car, in the engine compartment, even in the trunk. He swapped some parts from his own car. He kept the car for two weeks. (It is basically a spare car.) This was a month ago. He could not correct the problem.

Now the light has not come on for a week or so - ten trips from 3 to 75 miles.

The ABS works when I brake with one wheel in sand, the light does not come on except when I start the car. In the past, if it came on, it stayed on until the car was restarted.

The questions - Does this ABS adjust to any conditions, such as the new parts? Is there anything else to try? If the light comes back, I was going to open up all the harnesses that the wires appear to run in.

Thanks for reading.

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96 855R, 95 855,854, 90 744 Ti - 310,000 miles driven