Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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WRENCHTECH
AUTOMOTIVE REPAIR CONTRIBUTOR
20,761 POSTS
Most of them aren't adjustable but if there is any slotting in the screw holes that will allow it to rotate, attach a voltmeter to the signal return wire and it should read between .15v and .85v at idle.