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mdixon

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Everything posted by mdixon

  1. mdixon
    You'd think the dpf would be regening constantly if it was making it into the air stream, either intake or exhaust. Have you looked inside transmission bellhousing? It would likely be dripping if it's losing that much oil out the rear main seal, but maybe not.
  2. mdixon
    Pull the line off the air dryer from the compressor. If it's full of oil the compressor is shot. You may even see it on the cutout valve exhaust port.
  3. mdixon
    I know with cummins aftertreat systems (onebox) if any SCR components are changed/cleaned, a nox conversion test has to be run 5 minutes after a stationary regen to calibrate the dosing module to 0 nox. This gives the computer a baseline to compare and make adjustments against as stuff wears, and to prove mechanical function before it'll deactive codes. Maybe something similar is needed here with the dpf cleaning?
  4. mdixon
    Once warmed up this truck only making 40-45 at idle.
  5. mdixon
    nope, I got confused. Your right. Although to be fair.... it's never actually stated
  6. mdixon
    Sry cummins emissions does conversion tests. After dpf cleaning, reset soot, reset data, stationary regen
  7. mdixon
    When a stationary regen is "complete" the ecm measures the dp value and stores it for later, to find a mean value it can use to make decisions later.
  8. mdixon
    If it wasn't followed by a stationary regen and a conversion test it wouldn't have the necessary data to calibrate fully
  9. mdixon
    Generally for me if things happen to a component immediately after a service of THAT component, I assume that a procedural step or action was overlooked. There's lots of those when your dealing with emissions stuff.
  10. mdixon
    After dpf cleaning, if the truck wasnt run through a service reset and stationary regen, would it be possible it's just not calibrated to recognize a clean dpf? @Mackpro maybe cause it to go to the point of needing a stationary to re calibrate what "full" is?
  11. mdixon
    Ill also say after running those regens, I drove it around the farm for 30 minutes, no codes went active. Soot level didn't rise at all, but I never got over 20mph. I don't have a CDL so I stay off the roads, no farm plates on these. It's been sent back to work, ran all day today.
  12. mdixon
    So fuel pressure during regen in 55psi, 7th injector psi +-3. I haven't verified this yet though.
  13. mdixon
    You know I was thinking about pulling the valve cover next time I get it. I'm gonna have to to replace the wiring harness anyways, I'll be running the valves then. Egr dp koeo is -.1 to 0.0. Koer it's the same until the engine starts boosting at idle. Egr tests cold cause near stall drop in rpm, turbo speed <1000rpm very quickly. I'm still getting spikes in dp up to 3.4 when valve shows 0%, and my temps still drop by 150° randomly. I'm going with faulty harness with bad data causing overfuel/over command of the egr. The actuator is new, it ran fine for a month no complaints and no issues when I checked it 2 weeks ago.
  14. mdixon
    We've got a 19 and a 20, I believe the 19 doesn't have a low pressure sensor and the 20 does. I'd have to double check though, usually I get these calls and it's 10pm I don't really know which truck I'm looking at. What's EPRV?
  15. mdixon
    We blow in the tanks while cranking the engine. Usually I'll watch the live data on the pump supply pressure until it starts climbing, then ask someone to crank it while blowing air into the tank.
  16. mdixon
    Attempt #3. Soot dropped only 5% after regen #2. Running SCR regen now. Everything looks good. I don't understand what the problem is.
  17. mdixon
    Yeah, showed up yesterday. Temps went over 900 for 10 minutes, then stopped. Soot dropped to 104 from 144. No Codes showed up. It was raining yesterday, all codes popped yesterday except the egr code and that was from when I had it last. Everything is cleared now, running another regen.
  18. mdixon
    Talked to the rep about repinning the harness, he "can't find the part #s" and they don't have the connector chest. Looks like I'm gonna do a wiring harness. Still getting weird EGR jumps in the temp and dp
  19. mdixon
    Right now
  20. mdixon
    Well I'm back. Truck has returned. Most of the codes showed up yesterday, the egr code is leftover from my work before, hasn't been active since 12/28. About to run a parked regen and see what happens.
  21. mdixon
    The right size hole saw and some rubber did fine for me.
  22. mdixon
    We had an egr e7 refuse to run with an egr code. We didn't ether it, I replaced the egr mass flow pipe and box and it fired right up.
  23. mdixon
    This looks like a winner. That's awesome.
  24. mdixon
    You'd think soot level would drop to zero after a successful regen, I only blew it out with shop air. Definitely not a real cleaning lol. Damn thing looked great too, no melts, missing squares. Doc wasn't sooted up either. Visible inlet, no cracks or evidence of overheating.
  25. mdixon
    I did a reset with the bosch tool. Adaptive value was at 1 and wouldn't allow a reset. That TSB on the connector pins sounds like a possibility

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