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Type: Posts; User: btagg

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  1. Thread: LQ4 Tuning Help

    by btagg
    Replies
    13
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    457

    It is essentially just a stock replacement with...

    It is essentially just a stock replacement with -6AN ends brazed onto the intlet and outlets. I did check the fuel pressure at the rail and without the engine running it had 60 psi which I understand...
  2. Thread: LQ4 Tuning Help

    by btagg
    Replies
    13
    Views
    457

    Went for a drive and repeated this process and...

    Went for a drive and repeated this process and now all my long term fuel trim values are single digit numbers that seem far more reasonable. It does seem to be running a little smoother however I...
  3. Thread: LQ4 Tuning Help

    by btagg
    Replies
    13
    Views
    457

    I am running an AEM 50-1005 (400 lph) pump and a...

    I am running an AEM 50-1005 (400 lph) pump and a holley fuel pressure regulator/filter combo with a return to the tank. I tested the fuel pressure at the rail and had 60 psi.

    - Brett
  4. Thread: LQ4 Tuning Help

    by btagg
    Replies
    13
    Views
    457

    Okay, copied the LTFT values and added those the...

    Okay, copied the LTFT values and added those the Primary VE table and did a little of interpolation between values to fill smooth it out a little. This is what the table looks like now. Does this...
  5. Thread: LQ4 Tuning Help

    by btagg
    Replies
    13
    Views
    457

    Does this work?

    Does this work?
  6. Thread: LQ4 Tuning Help

    by btagg
    Replies
    13
    Views
    457

    LQ4 Tuning Help

    I just finished putting a 2004 LQ4 into my 1972 k20 with an nv4500 transmission. I am using the stock PCM with a BP automotive speed density only harness (no MAF) as well as the DBW pedal and the TAC...
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