i had one code come up on my truck and im not sure what it is

 

P1689 - No Communication Between ECM & Injection Pump Module?
http://www.obd-codes.com/trouble_codes/dodge/

 

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?

 

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

 

thats what i got when my vp went out and the wire going from the vp to the ecm was brunt and had to be piggy backed cause to fix it right would have been another $800.
so make sure you check that wire.
good luck.

 

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 ?

 

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.

 

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

 

That is interesting....

"usually" when the oil pressure guage quits working - its the pressure sender.

 

i think 1693 is the companion code . 1689 is the no communication between ecm and injection pump module code....at any rate it's not good, i just had 1688,1689 1693 and no start. replaced Inj. pump and all is good

 

The only code that im getting now is 1693

 

that is the code i was getting when my vp died. the wire from the ecm to vp44 was brunt, supposedly. it had to be piggybacked.

 

Well the wireing all checked out so i hope its not a sign that my vp is on its way out

 

you checked all the wires?

 

yea everything has been tested and checked