check engine light
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check engine light
fired up the truck today and the check engine light came on. checked codes and it showed 1690, 1693, and 0230. after i shut it off the check engine light was off. anybody have any ideas. thanks
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Joined: Dec 2002
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Does Not Agree With ECM CKP
Sensor
Problem in fuel sync signal. Possible injection pump
timing problem. Low power, engine derated, or engine
stops.
P0230 Transfer Pump (Lift Pump) Circuit
Out of Range
Problem detected in fuel transfer pump circuits.
P1693 (M) DTC Detected in Companion Module A fault has been generated in the companion engine
control module.
P1693 (M) DTC Detected in PCM/ECM or DTC
Detected in ECM
A 9Companion DTC9 was set in both the ECM and PCM.
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