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  1. One more update and a PSA on MAP AE - Made a...

    One more update and a PSA on MAP AE -

    Made a few more tweaks in March. Ran well, but the spark advance was a bit more aggressive than I really wanted. Dialed it back some.

    Now for the PSA on...
  2. Another handful of changes and what seems to be...

    Another handful of changes and what seems to be more progress (at least around 9 deg C).

    Painting with a bit of a broad brush, I decided to disable most temp based corrections an allow the Open...
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    All good questions. At first I looked for a good...

    All good questions. At first I looked for a good overview forum thread to point you to, but didn't find one in my quick search of this site.

    I'll briefly answer you last questions, then provide a...
  4. Progress - learnings and a rant

    A few things that have seemed to have improved cold idle and general performance:

    1. Didn't find an exhaust leak, so I ruled that out.

    2. Did remember that the gas in the tank was at least 6...
  5. Thanks Fast! - that makes sense. Here's my...

    Thanks Fast! - that makes sense.

    Here's my formula (compared to Inj Duty Cycle value to confirm):

    "BPW Hack Value"/65535*1000 = Pulse Width *Before* Pulse Width Adder.

    Warmer here today...
  6. A couple updates - Latest bin is a little...

    A couple updates -

    Latest bin is a little better.

    1. Seems like there could be a slight exhaust leak skewing the WBO2 readings leaner than actual. No matter how rich I skew fueling (large BPW...
  7. Re: the two tables for target AFR, did a spot...

    Re: the two tables for target AFR, did a spot checked that to make sure:

    At 16deg C Coolant, 40 kPa MAP: AFR vs Temp = 9, AFR vs Vac = 2.5 = 11.5:1 target. Admittedly, up at 67C and 40kPa, that...
  8. TBI 7747 Idle Fueling Issue while Cold - Too lean, AFRs not responding to bin changes

    Been lurking here for a while as I've been doing TBI tuning on/off over the years. Searched a bunch on this forum, but haven't seen other treads with the same or similar issue.

    Basic problem: Not...
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    Followed Dave W's instructions in the first post....

    Followed Dave W's instructions in the first post. Turned out great. I had never looked at the chip pin outs closely before. Used a G2 w/ zif holder in the past for a different vehicle. Bought a low...
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