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Type: Posts; User: neond123

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  1. Replies
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    Thanks for the advice. I put it in speed density....

    Thanks for the advice. I put it in speed density. Runs like a dream. I honestly think it's too cammed for the stock MAF. I think what happened was the MAF was spiking when returning to idle from the...
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    Need help with fueling/airflow

    Well, here I am at the mercy of the forum again. I've gotten my swap running fairly well, (off-idle hesitation, startability, etc.).

    I have been able to put about 55 miles on the car. However. I...
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    Unfortunately I've had my COT disabled from the...

    Unfortunately I've had my COT disabled from the jump.
    Decided to just disable closed loop and give up on fuel trim for now and just tune using wideband error.
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    No :/ doesn't sound like a problem I would have....

    No :/ doesn't sound like a problem I would have. It's a Holley 90mm with a reducer to a brand new MAF with a Spectre isle 5 special AutoZone filter right after.
    No oil, no vacuum leaks as far as I...
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    STFT goes crazy at random times

    So. I'm beginning to tune my car, I drive it to get coffee everyday, it now has an official 12 miles on it.

    But I've disabled the VE tables so I can adjust the MAF. Unfortunately I can't really...
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    What fuse would that be? And to reiterate:...

    What fuse would that be?

    And to reiterate:
    PRNDL Switch: P-R-N-D4-D3-D2-D1
    Shift Mode: Normal Shift- Normal D3- Normal D2 (Never changes mode to Normal D1)
    Transmission Current Gear: never...
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    The transmission is truly in second. It pulls...

    The transmission is truly in second. It pulls away like it's in second. The rpms act like second. If I have it in D1, it's in second. If I shift to D2, nothing happens because it just stays in...
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    That's correct. It goes 4,3,2,2. Manual first...

    That's correct. It goes 4,3,2,2. Manual first doesn't register.
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    No. The lever is in D1 (verified twice), the...

    No. The lever is in D1 (verified twice), the PRNDL is saying D1, but the trans is actually is starting in second.

    If its in D4 (OD), it starts in first. If it's in D3 (drive/no OD) it starts in...
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    Ok so basically. If I leave it in D4, the current...

    Ok so basically. If I leave it in D4, the current gear when stopped is 1. And I get 2,3,4 etc. It's fine by itself. And if I use the scanner to command each gear it's fine. I can go in 1st and hold...
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    I did the manual gear command through the...

    I did the manual gear command through the scanner. I'm missing 1st. Im starting in second. Trans current gear in the "1st" position on the B&M reads 2.

    Cable adjustment???
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    Gen 3 Weird Transmission Behavior

    Me again. One thing at a time. I have been driving my swap about 1.5-2 miles a day just to give it some practice (get it up to temp, load, break in, etc.)
    I have yet to make it road legal so I can...
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    UPDATE: Updated open loop stoich tables, didn't...

    UPDATE: Updated open loop stoich tables, didn't touch the EQ. Its commanding stoich now so that's very good. Still running open loop no O2's. It doesn't backfire as much at idle. But when you gas it...
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    The injectors are 2009 flex fuel injectors. I...

    The injectors are 2009 flex fuel injectors. I don't know the part numbers off hand. 36 lb/hr GM OE
    I didn't change any parameters except for the flow rate. 😬😬

    And no, I'm not running flex right...
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    The guy asked to see my tune. I gave it to him....

    The guy asked to see my tune. I gave it to him. Maybe he knows something else. Just looking for input. Thank you for your concern regarding my ability to follow directions.
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    P.S. Popping/backfires only happen at idle...

    P.S. Popping/backfires only happen at idle (800-900 rpm) to about 1,300 rpm.
    Only started about a week ago. It may be because the plugs are super fouled, but it's running too rich, causing the foul,...
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    I have 18" of extension that the O2's are sitting...

    I have 18" of extension that the O2's are sitting in, 6" after the collector, 10" after the outlet. I was under the impression this was enough. Clearly something is wrong. It starts backfiring as...
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    P.S. Since I forgot to put in original post....

    P.S. Since I forgot to put in original post. Before anyone asks. No I don't have wideband. I know I know...

    But from what I'm getting from the stock narrow O2's- around 650-800 mV- I can safely...
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    Help: 5.3 L59 Running SUPER rich

    I have a 5.3 Gen III L59 that is swapped into an old Pontiac that I am just now starting to run more/drive around a little (vehicle is currently uninsured, unregistered, running open headers, no seat...
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    Thanks for putting my mind somewhat at ease :D, I...

    Thanks for putting my mind somewhat at ease :D, I asked a couple friends and they said the same thing: just watch it. I honed the cylinders with I believe a 360ish grit dingleball. The rings are...
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    Cammed L59 RUNNING!!! (metal in filter?)

    Thanks to the help of some more savvy users on my last thread, the 5.3 now runs.


    The good:
    It starts right up, idles decent by itself, and sings up 3,000 rpm.
    I got it up to temp (215*), and...
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    IT RUNS!!! I had the coil harness correct...

    IT RUNS!!! I had the coil harness correct bank-to-bank but not cylinder to cylinder it was firing pretty much reverse order
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    I thought about that too :/ unfortunately they're...

    I thought about that too :/ unfortunately they're plugged in right. They run with the injector plugs and I verified the injectors and the coil pack sub harnesses.
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    I started to suspect the MAF today because when I...

    I started to suspect the MAF today because when I hooked up the shop scanner and looked at sensor readings, key ON engine OFF the MAF was not reading at all. If I'm not mistaken it should still have...
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    I thought about the same thing last night and I...

    I thought about the same thing last night and I looked up a map sensor for a 2006 TBSS and a 2002 Tahoe and it's the same ACDelco PN for both MAP sensors. To the best of my knowledge they're the same...
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