Throwing code P1693 and getting no fuel help
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Throwing code P1693 and getting no fuel help
injection pump is only 6 months old and the lift pump is pumping i checked that as well it just keeps throwing the same code you can try new computers ecm and pcm it never even stutters with a different computer it just throws same code on everything i just dont know what to do.. i had read on another postin on a cummins the fuel shutoff maybe i dont know you all are the experts and know about this stuff more than me....
Thread Starter
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Registered User
Joined: Jan 2010
Posts: 11
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this is what i have found out soo far and i need it stupified if possible please help
P1689 - Indicates a Data link failure between ECM and fuel injection pump. Low power, engine dereated or engine stops.
POSSIBLE CAUSES:
POSSIBLE CAUSES:
- Fuel Inj pump Gnd ckt open or high resistance
- Fuel pump ctrl mod harness observable defect
- Datalink (+) circuit open
- Datalink (+) circuit short to ground
- Datalink (-) circuit open
- Datalink (-) circuit short to ground
- Engine control module defective
