Quote:
Originally Posted by andrewjtx
The best way to test ABS is to brake on gravel or wet asphalt (big empty parking lot, please) . You want to induce the wheels slipping.
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This. ^^^ Just test your car. You'll know if the system is working. If it does work, there is no way you can definitively ensure it will always work in the future, no matter what parts you proactively replace / rebuild. Replacing an ABS unit that is working normally would be a significant waste of money, but it is your money, not ours. If the system is not working, it's more likely to be a speed sensor or other electrical fault, not the ABS unit itself.
I do hope that after all this effort and expense, you also have the best of the best tires mounted, as those will make far more difference (IMO) in real-world stopping distances.
Side note... yes you can use less than 29psi pressure to bleed ABS (not ASR!) systems, all you need is enough pressure to get flow from all 4 caliper bleed screws. Or as mentioned previously, you can still use the pump-the-pedal method if you don't mind risking MC damage. Gas models with ASR require pressure bleeding and generally need the 2-bar (29 psi) pressure specified in the FSM, job 42-0010.
