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Thread: 98 vette no LTFTs or STFTs

  1. #1
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    98 vette no LTFTs or STFTs

    Just got done with an engine swap, and after the install the new engine had a rear main seal leaking. I took the car back to the shop that did the swap, and they replaced the seal and no more leaks. And no more Fuel Trims. Everything was fine before the trans came out to replace the seal Because I had been working on the Idle Air Flow tables Trying to get the car to idle. The first thing that crossed my mind was a loose battery connection. I did find a loose positive connection. I have not fixed the problem yet because I have to get a longer battery bolt. Any input ?

  2. #2
    Tuning Addict WS6FirebirdTA00's Avatar
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    Post a log with the relevant PIDs and the tune.
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  3. #3
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    I figured it out. Blown fuse to O2s.

  4. #4
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    Here is tune, and logs. Just wish i had a 99 PCM so I can log more PIDs. Car Idles but not in SD.

    Attachment 16364

    Attachment 16365

    Attachment 16366

    Attachment 16367
    Last edited by blued turboed1; 01-29-2009 at 11:24 PM.

  5. #5
    Tuning Addict WS6FirebirdTA00's Avatar
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    mods?
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  6. #6
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    Put them in my sig last night
    98 Vette, 346 Stock Crank, Eagle Rods, Mahle -4cc flat tops, pattriot stage2 ls6 heads,MS4 cam, Harland Sharp RRs, Fast 92 W\LS2 TB,VariRam, 25%UD Pulley, LTs, B&B,Finnish Line Stage 4, Vig. 3200, ZO6 Rear, and PLX

  7. #7
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    I cant figure out why it dosent Idle in SD. It idles good until it gets warm. then goes way fat an won't idle. Any sugestions?
    98 Vette, 346 Stock Crank, Eagle Rods, Mahle -4cc flat tops, pattriot stage2 ls6 heads,MS4 cam, Harland Sharp RRs, Fast 92 W\LS2 TB,VariRam, 25%UD Pulley, LTs, B&B,Finnish Line Stage 4, Vig. 3200, ZO6 Rear, and PLX

  8. #8
    Tuning Addict WS6FirebirdTA00's Avatar
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    I can't open the files on this computer, but have you changed the primary and secondary VE tables at all?
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  9. #9
    Tuning Addict WS6FirebirdTA00's Avatar
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    Yes, you never tuned the secondary VE. When the MAF fails, make changes to the primary VE and copy over to the secondary.
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  10. #10
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    Thank U. I knew I was missing something.
    98 Vette, 346 Stock Crank, Eagle Rods, Mahle -4cc flat tops, pattriot stage2 ls6 heads,MS4 cam, Harland Sharp RRs, Fast 92 W\LS2 TB,VariRam, 25%UD Pulley, LTs, B&B,Finnish Line Stage 4, Vig. 3200, ZO6 Rear, and PLX