AKTikki
New Member
ok I have a 1994 k 2500 that im trying to get running. well i should say i got running but not right. previous owner had a fire in the engine bay so i got a new wiring harness for it. also found out that it has a IP from a 95 3500 same with pmd. Now I have both computers for the truck (1994-1995) and i have gmtd tech i got it running and it ran like crap thought it was the timing and i dont think i'm to far off about that. My problem is i dunno which computer to use with this pump. I know im supposed to use the 95 computer with the 95 pump but i have no way to tell which computer is 1995. a little more information... on one computer all the sensors show up but no matter what i do or how i turn the IP its always got between 15 and 25 degree of advanced measured injection timing. While it says to have 9.5 or so desired timing. even if i turn it way retarded the timing still jumps all over but never lower then 15 on actual and i moved it enough to be able to make a difference. i cant get it to retime due to this it always gives me dtc 34. now i plug in the other computer and it seemed to run better but no throttle and there is a lot of dcts that seem to point to a bad PMD and it can't read the timing due to these (dtc 34 and 17 and one of the injection pulse ones if i remember correctly. and those are just with this computer). the timing reads 0. its a pain to start with either computer but one seems to give it so much timing. also the actual injection pump timing says something like 43.
i have part numbers for both computers i have tried moving both chips into each computer with no difference.
one computers number is *86bpaam252490093 with serv no 16212488
the other is 86bkylm240533888 with service number 16183977
i could not get around to the back of the injection pump but the tag on the engine stop solenoid has a few numbers i hope will identify the pump
540114 11096665 5942
if i can figuire out which computer is right i could at least start figuireing out if the timing is off a tooth or if the PMD is bad. please help
oh and the optic sensor is way off both computer show it having like 20mm of fuel at idle. would that effect the timing? i know i have to fix that before driving it but i would at least like to get it timed and running in a way to where its not shaking and having to hold it full throttle just to get it to start. along with it not wanting to rev at all.
i have part numbers for both computers i have tried moving both chips into each computer with no difference.
one computers number is *86bpaam252490093 with serv no 16212488
the other is 86bkylm240533888 with service number 16183977
i could not get around to the back of the injection pump but the tag on the engine stop solenoid has a few numbers i hope will identify the pump
540114 11096665 5942
if i can figuire out which computer is right i could at least start figuireing out if the timing is off a tooth or if the PMD is bad. please help
oh and the optic sensor is way off both computer show it having like 20mm of fuel at idle. would that effect the timing? i know i have to fix that before driving it but i would at least like to get it timed and running in a way to where its not shaking and having to hold it full throttle just to get it to start. along with it not wanting to rev at all.