P1689 code?
06-30-2007, 09:02 AM
#3
P1689 (M) No Communication Between ECM and Injection Pump Module.
Data link circuit failure between ECM and fuel injection pump. Low power, engine derated, or engine stops.
Has your truck had any of those symptoms lately?
Data link circuit failure between ECM and fuel injection pump. Low power, engine derated, or engine stops.
Has your truck had any of those symptoms lately?
07-01-2007, 06:50 PM
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yea my truck aint running right now it stoped running a few weeks ago and we found that the lift pump was dead so put a new one in and got fuel to the injectors and still wont run
07-01-2007, 09:14 PM
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so make sure you check that wire.
good luck.
07-05-2007, 08:51 PM
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Ok so i got my truck running finally today all it took was 2 computers and a lift pump
but it runs and im pull a p1693 code out if it and i've hearded its a companion code but i have no clue what that is and one other thing is that my oil preasure gauge is not workin at all and i get a Check gauge light but i know i have oil preasure so any ideas ?
but it runs and im pull a p1693 code out if it and i've hearded its a companion code but i have no clue what that is and one other thing is that my oil preasure gauge is not workin at all and i get a Check gauge light but i know i have oil preasure so any ideas ?
07-05-2007, 09:07 PM
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P1689 is called a companion code - it tells you that another code is stored but you generally need a code reader/scanner to extract the missing code.\
Do yourself a favor and get a fuel pressure guage to monitor your lift pump.
Oil pressure = sounds like the pressure sender. Its on the drivers side of the engine.
Do yourself a favor and get a fuel pressure guage to monitor your lift pump.
Oil pressure = sounds like the pressure sender. Its on the drivers side of the engine.
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07-05-2007, 11:19 PM
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Ok thats just what i will do thanks for the info ...the funny part about the oil preasure gauge is that it worked fine before i had all the issues what the truck and it only seemed like it stoped working when i put the new computers in it
07-06-2007, 12:22 PM
#10
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P1689 is called a companion code - it tells you that another code is stored but you generally need a code reader/scanner to extract the missing code.\
Do yourself a favor and get a fuel pressure guage to monitor your lift pump.
Oil pressure = sounds like the pressure sender. Its on the drivers side of the engine.
Do yourself a favor and get a fuel pressure guage to monitor your lift pump.
Oil pressure = sounds like the pressure sender. Its on the drivers side of the engine.
07-06-2007, 02:03 PM
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07-06-2007, 07:01 PM
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