verify you have 5v power supply at throttle body from ecm, verify etc relay power to ecm, check for corrosion at bottom of etc relay box(pull/push on wires)....perform the key learns....and if has the adjustable pot(not to sure on this, set it to 0.6v)..also i have found broken wires at the connector or the throttle body connector, (more often then anything else)
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