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  1. mamu

    lmm fuel knock misfire

    put truck back to stock. same thing. truck will rev but it misses and shakes all the way through the rpm range. checked rail pressure and it shows to be matched pretty consistent with desired.
  2. mamu

    lmm fuel knock misfire

    hey guys, i had a lmm come in with a fuel knock and bucking and jumping on the road. reduced engine power and barely would pull it self. showed 3 and 5 cylinder misfire on the computer but that was the only codes. heres what I've checked. crank ring good and tight. load tested and ohm tested...
  3. mamu

    lml with cp3 or lmm conversion

    sorry for posting from different names. somehow i managed to gain a different user name when i loaded the tapatalk app on my new phone a few months back.
  4. mamu

    lml with cp3 or lmm conversion

    alright everyone i have a possibility of putting together a few engines and need to poll the audience. i have the option to buy 4 lml/lgh engines. they came from ambulances so I'm leaning towards the lgh. i know 2 of them have bad cp4 pumps, 1 was wrecked and busted front accessories and oil...
  5. mamu

    99-02 vs 03-07 interior

    what was so hard on the heated seats? id really like to have that option!
  6. mamu

    99-02 vs 03-07 interior

    rite on! i have the stuff to convert my 05 from the fold down console to the full console. just wonder if the dash pieces are the same? guess i can try and see. just want to see if anyone can give some info before i go to tearing it apart. thanks
  7. mamu

    99-02 vs 03-07 interior

    can a moderator moves this to the interior section? on tapatalk it didn't give me the little description under the heading! thanks!
  8. mamu

    08 4500 lmm no data

    i need to find someone who can flash a ecm/pcm on a bench harness. Ran my trouble shooting for the data stream. Found to much voltage on the data wires from the ecm to the gpcm. I have a new ecm/pcm thats blank and plugged it up then i have no voltage on the wires. So i guess i need someone to...
  9. mamu

    08 4500 lmm no data

    alrite guys, I've load tested the wires from obd2 plug in the cab to the harness under the hood to the pcm, tcm, bale connectors and gpcm. all wires carry load and show to be good. i can communicate with the tcm. but can't communicate with gpcm or ecm. the gpcm is first in line so I'm...
  10. mamu

    08 4500 lmm no data

    should be back on this around the end of the week. I'm tring to get a cummins isx built then i can go back to the top kick. so i haven't abandoned this rig yet.
  11. mamu

    08 4500 lmm no data

    sorry i thought i had made it clear that i was using all top kick stuff. i don't have any of the ambulance stuff or know anything about it.
  12. mamu

    08 4500 lmm no data

    i was thinking about this last night. should it matter if the data wires are in a different pin? I'm using the truck ecm, truck harness, and truck data plug. so it should be just like it was before they put the motor in. i know that i can't communicate with the gpcm to get flow rates or...
  13. mamu

    08 4500 lmm no data

    hmmm. did not think about that. ill see if I can find a schematic for a van and see what it says!
  14. mamu

    08 4500 lmm no data

    i have no information from the ambulance. customer had his mechanic swap the motors out. all i have is the truck now with a running engine but no data communication. duramaxnate: is there something your looking for? i might can call and find out where it came from and stuff. might get lucky...
  15. mamu

    08 4500 lmm no data

    i have tried to use a snap-on solus going in as a 2500 and 3500. but i have also used my efi live and tried to connect to the ecm direct and nothing.
  16. mamu

    08 4500 lmm no data

    my guy at the dealer said there was a bunch of codes in the ebcm and that it was possible that it was taking the data link down due to them. I've looked at the data diagram and the GM LAN wires don't go through the ebcm........could it be killing the Class 2 Serial Data wire and that be my...
  17. mamu

    08 4500 lmm no data

    Ecm is the original from the truck. Supposedly everything ambulance related was removed and replaced with original parts. We have a new Ecm from dealer that's blank. They can't load a calibration in it because they can't communicate with it either.
  18. mamu

    08 4500 lmm no data

    hey everyone. this will be a slightly long post but its necessary to get all the info out there. the truck: 08 4500 4x4 regular cab auto. dpf/egr intact. the problem: Customer apparently blowed a motor up (pipeline company). they had their mechanic pull the cab and motor. bought another...
  19. mamu

    02 head gaskets and injectors low power

    here are 3 logs and idling/in gear with the injector balance rates. I had to put them in a folder to be able to attach them. I guess I haven't figured out how to attach just a log file. truck runs better until you hit overdrive. then it falls on its face. even empty. I plan to check for boost...
  20. mamu

    02 head gaskets and injectors low power

    like crank up fuel pressure using the scanner? or air by plugging one side and putting pressure to the other boost tube to check tubes and cac?