roadrage1

hey guys my 2000 ram is throwing this p1693 code from what i'v found on code list's it the ecu or something can somebody explain please?

rich

believe its a copanion code need acode reader to get more info

BigIron70

Possible bad transfer pump...P1693 doesn't tell me anything other then code is stored in the PCM... You need to pull code from ECM if there is one stored.

roadrage1

yeh i check'd the code it said the compainon ecm has shown a fault,
what is the companion ecm? i dont know much about these engines but i'm trying to learn

Dr. Evil

You need a OBDII code reader to read the other code. P1693 tells you another code has been set.

Does it run?

roadrage1

sometimes it starts and it runs for a minute or two then starts too miss and jerk and die may start back may not, last year we had to replace the crank sensor so we replaced it again this week that was't it

rich

hows the fuel pressure. has anything been done to the fuel system. lift pump, injector pump. without pulling the code from the ecm to get to the actual code its hard to diagnose

roadrage1

no nothing has been done to the fuel system, have no idea what the fuel pressure is ,dont have no gauge , hey rich what do you haul down there? were in texas every week with farm gates

BigIron70

roadrage I would check the fuel volume from pump if you don't have a gauge. Replace fuel filter before test if it is not new... Disconnect fuel line at injection pump and run a piece of hose into a container. Bump starter, fuel pump will run...measure fuel in container ....should be 45oz min if below that you have transfer pump bad. Might need to do test several times to get accurate test result.

rich

i haul anything thats under 18k and fits on the 40 ft. deffinately start with the fuel issue first

roadrage1

alright got the code p0216

patdaly

Bad VP44.

I do have a friend who had 0216 and replacing the lift pump ( it was dead ) cured, at least so far, the problem.

Check your fuel pressure.