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Thread: AutoVE tuning newly boosted car

  1. #31
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by Jim_PA View Post
    I have the car running really well. It's been great all fall and winter. Now that temps are creeping up, I started getting P2101 codes again when I'm heavy on the throttle in the upper RPM range. This happens when the car has sat for a little bit and heat soaked.

    Something is going awry ONLY when the air is hot. I haven't had this happen since September and I drive it every day of the week.
    Post your current tune/log files.

  2. #32
    Joe (Moderator) joecar's Avatar
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    Remind me which wideband you're using...

  3. #33
    Joe (Moderator) joecar's Avatar
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    Log GM.ETCTP instead of GM.TP.

  4. #34
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    Quote Originally Posted by joecar View Post
    I do apologize, I had some family hospital stuff going on. When I last looked at your log/tune files you seemed to be on the right track (and you will know this when engine response/driveability is good).
    Just throwing out my issues for anyone that might be listening, but I hope everything is going OK for you now!

    It is definitely IAT related, and I'm not sure what happens first... either the car falls flat, then the code hits, or the car falls flat because of the code. It's too hard to tell. But it's definitely high IAT's, 4000+ RPM for like 2 seconds and poof.... code is thrown. Even in the winter I've parked it long enough to get some heat soak and went out and floored it and haven't had an issue. All I can think is that the IAT factors are pulling too much timing.

  5. #35
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    Quote Originally Posted by joecar View Post
    Remind me which wideband you're using...
    Innovate LC1, using the digital interface.

  6. #36
    Joe (Moderator) joecar's Avatar
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    Post your current tune file.

    so this happens when IAT is high, this is causing cylair calculation to be low, this may be tripping one of the sanity tables, now if we can figure out exactly what.

  7. #37
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    I did add a new cam back in October http://www.tickperformance.com/tick-...r-ls2-engines/

    The "heartbeat" Eaton blower has the IAT/MAP all in one unit that is mounted in the back of the blower. I'm not sure that heat soak is all the problem, maybe it's just the hot air.


    New-Cam_048.ctz

  8. #38
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by Jim_PA View Post
    I did add a new cam back in October tick-performance-blower-stage-1-v2-camshaft-for-ls2-engines/

    The "heartbeat" Eaton blower has the IAT/MAP all in one unit that is mounted in the back of the blower. I'm not sure that heat soak is all the problem, maybe it's just the hot air.


    New-Cam_048.ctz
    225/237 116 +5 blower cam... I'll look at your tune file today; do you have any logs from it...?

  9. #39
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    I added some timing and then made a log.

    New-Cam_049_p4_timing.ctzLS1B_0190.efi

  10. #40
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    Here is my log of getting P2101 and my tune. help!


    LS1B_0196.efi

    New-Cam_051.ctz

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