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speed and reference sensor testing
both sensors are the same part take an ohm meter and measure across center and outer terminals should have between 900 to 1100 ohms very rarely is sensor out of adjustment. gap should 0.8 mm (less than a millimeter) make sure plugs are connected to the proper sensor switch plugs and try again if you did not mark connectors. tach needle should slightly move when cranking over engine also check dme relay many have solder contacts cracked inspect with magnifying glass. try this and get back to me if still no go. regards tom
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