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  1. Replies
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    Bumping an old thread because I'm not experienced...

    Bumping an old thread because I'm not experienced with this much at all. I use a V1 with my LS1 Camaro but I'm trying to connect to an E38 ECM. From the post above, sounds like thats not going to...
  2. Thread: 25% ltft

    by KCG
    Replies
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    4,651

    Is it common for a mail order tune to be this far...

    Is it common for a mail order tune to be this far off? I'm at +25% a good part of that log..even with MAF failed
  3. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    Cold start. About 30 minute drive. Trims still...

    Cold start. About 30 minute drive. Trims still plenty positive.
  4. Thread: 25% ltft

    by KCG
    Replies
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    4,651

    Quick update.. Added the pids and rapped on the...

    Quick update..
    Added the pids and rapped on the passenger side head a few times. Did not get any counts.
    Added trans pressure pid and can see it jump quickly as throttle increases but drops to zero...
  5. Thread: 25% ltft

    by KCG
    Replies
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    4,651

    All great info Joe. - B0103 does not exist in...

    All great info Joe.

    - B0103 does not exist in my tune (ECM?)
    - Is there a "systems check" or way to verify KS are working?
    - E0102 etc are all set to NO
  6. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    ok cool. I really appreciate the lessons. Thank...

    ok cool. I really appreciate the lessons. Thank you.

    So, is this procedure I posted earlier the correct way to force SD if I just want to get rid of the MAF at least temporarily? Not physically, I...
  7. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    ok, am I thinking this correctly... The ECM...

    ok, am I thinking this correctly...
    The ECM thinks there is LESS air going into the engine. In other words, there's MORE air going in, the ECM doesn't know about.
    So with O2 feedback trying to...
  8. Thread: 25% ltft

    by KCG
    Replies
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    Views
    4,651

    I'm just trying to say since the injector data...

    I'm just trying to say since the injector data has been changed to create acceptable trims, this says something is wrong. Whether its the MAF, O2 sensors or possibly the injectors themselves.

    ...
  9. Thread: 25% ltft

    by KCG
    Replies
    39
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    4,651

    How much of a straight section is recommended on...

    How much of a straight section is recommended on the output side?
  10. Thread: 25% ltft

    by KCG
    Replies
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    4,651

    Maryland Yes, numbers were ~5.x, now ~3.5...

    Maryland



    Yes, numbers were ~5.x, now ~3.5



    21597
  11. Thread: 25% ltft

    by KCG
    Replies
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    4,651

    Sorry Joe, missed your reply. Yes my fault on the...

    Sorry Joe, missed your reply. Yes my fault on the reverse coil wiring bank 2. No more popping. After 5 years I guess I was just too excited hearing it fire off right away to realize it really wasn't...
  12. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    Guys, thanks for trying to help me out. I really...

    Guys, thanks for trying to help me out. I really appreciate it. Even tho my problem wasn't in the tune, it helped me to work towards finding the problem.
    I'm new here but will be visiting often as...
  13. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    So I had checked my fuel pressure to be sure and...

    So I had checked my fuel pressure to be sure and all seems well except when I pulled the guage off the rail I noticed how yellow looking the gas is. Some dripped on the floor, and even on concrete it...
  14. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    Ah right:thumb_yello:

    Ah right:thumb_yello:
  15. Thread: 25% ltft

    by KCG
    Replies
    39
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    4,651

    Good deal. Thanks a lot for hanging with me here...

    Good deal. Thanks a lot for hanging with me here tonight.
    Hopefully I'll update soon with what i've found.
    Again, really appreciate your help.
  16. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    OK great. That was my first mistake, I didn't...

    OK great. That was my first mistake, I didn't save the tune before I started the engine. But by disconnecting battery, which I do all the time, and clearing fuel trims, then reflash, and it still...
  17. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    My thoughts as well...not necessarily a...

    My thoughts as well...not necessarily a mechanical failure, but maybe that, bad gas, loose grounds....just something other than the PCM causing this. That's why I'm directing my questions to anyone...
  18. Thread: 25% ltft

    by KCG
    Replies
    39
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    4,651

    Really...what are you thinking is happening?

    Really...what are you thinking is happening?
  19. Thread: 25% ltft

    by KCG
    Replies
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    4,651

    Above Joe says more than likely I caused this...

    Above Joe says more than likely I caused this issue by starting the engine with open headers a few times. So I understand how it would think its lean and bumping LTFT to 25% when it gets to that...
  20. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    I disabled LTFT at Fuel-Trims-Parameters thinking...

    I disabled LTFT at Fuel-Trims-Parameters thinking it would stop the 25% add till I can get this figured out. Also cleared Fuel Trims using DVT. Installed new plugs.
    But I can't even get to Closed...
  21. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    Great. thank you for the info. I'll give it a...

    Great. thank you for the info. I'll give it a shot.
  22. Thread: 25% ltft

    by KCG
    Replies
    39
    Views
    4,651

    25% ltft

    I'm pretty much in the dark when it comes to tuning. I'm starting up a new build and have very rough running and severe backfire....
    SBE LQ4, L92 heads, LS3 stock intake and injectors. Custom cam...
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