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Thread: Need help with no start issue

  1. #21
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    Quote Originally Posted by andysc3 View Post
    awesome. thank you. Guess its time to take it off the blocks lol.
    If it starts up and revs all good....I would.
    Only way you'll get good data for tuning is driving it.

  2. #22
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    Okay. So went for a drive. Afr was still pegged lean. Then got a reduced engine power. P0068 map/maf-throttle position correlation
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  3. #23
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    the dtc was set at frame 33000. my efi live wouldnt let me load the pid list you attached. there were a few spots where timing dropped to -15. other than that it was pretty good. need to fix some of the transmission tables. it didnt like the converter much.
    Attached Files Attached Files
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  4. #24
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    I do have some slight leaks on the exhaust slip connections on the y-pipe. Ordered some better clamps that will be here on Saturday
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  5. #25
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    would adjusting C0805/6 cure the P0068? below 30% throttle the expected change seem kinda low?
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  6. #26
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    Also thinking my wideband sensor may be bad. With leaving the key on for 30+ seconds then trying to start it. Could have damaged the ceramic inside the sensor.
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  7. #27
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    New exhaust clamps came in. While their not fully sealed its alot better than before. Most of the leaks are after the ypipe though. The new o2 sensor for bank 2 also came in. Was orginally scheduled for Monday so it was a nice surprise. Ordered a new bosch wideband sensor last night. Will hopefully have it by Tuesday or Wednesday. Should I enable the stft until the new wb sensor is here?
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  8. #28
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    I renabled stft and after about 30 seconds trims went to -25% and the idle started hunting real bad. Guess I'm going to have to wait until the new wb sensor comes in before I can do any more fuel tuning. Got the idle down to 800rpm with a base of 18* would go +/-50 rpms
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  9. #29
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    New bosch wbo2 came in. Got it swapped in. Went to load a new tune with the vve tables lowered in the idle areas but the battery was dead. Seems I forgot to unplug the v2 from the obd2 port along with below freezing temps the last few days. I have it on a charger. Will try again tonight when I get home.
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

  10. #30
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    And I have a working wideband now. log showed I need to take an additional 20% out of the idle area on the vve table. got timing alittle better, might need to take an additional 1 or 2* out of the base idle timing. it's also wanting to hunt for the idle but not as bad as before.
    Attached Files Attached Files
    2011 Cadillac Escalade ESV. BTR 218/224 .553/.553 110LSA. Built 6L80 with 278mm Circle D 2800 stall converter.

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