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Thread: Idle Tuning - Helpful Info Inside

  1. #41
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    im not sure what you mean with rafpn somethin air flow park neutal and in gear but what am i watching or log lbs/per min on the iac?

  2. #42
    Lifetime Member SSpdDmon's Avatar
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    Quote Originally Posted by kostelacd69 View Post
    im not sure what you mean with rafpn somethin air flow park neutal and in gear but what am i watching or log lbs/per min on the iac?
    You need to log the idle trims (not fuel related). See this thread for detail:

    http://forum.efilive.com/showthread....2291#post52291

  3. #43
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    here is my log and the average is .01. im lost you can see the idle going up and down
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  4. #44
    Lifetime Member SSpdDmon's Avatar
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    Quote Originally Posted by kostelacd69 View Post
    here is my log and the average is .01. im lost you can see the idle going up and down
    Sorry to respond so late - don't appear to have a subscription to this thread.

    I couldn't view your log on this laptop (still on v7.4). So, I took a stab in the dark. The changes made can be found on the History tab right when you open the tune. Try out those new tables in your current tune and see if it's any better.

    Just a word of caution. The timing values you have seem "different" to me. I don't know many setups that like that much timing in the low RPM, mid-low airflow regions....and with the idle over/underspeed timing controls limited to +/- 2*, that might be the cause of your idle swing issue. I primarily adjusted the IAC related tables that I thought would help improve your idle. But, you might want to consider reworking the timing settings you have.
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  5. #45
    Joe (Moderator) joecar's Avatar
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    Related material that references this thread: Idle-Tips-amp-Tricks



    [ this is a note to myself as I organize stuff ]

  6. #46
    Junior Member Dewglass's Avatar
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    Quote Originally Posted by joecar View Post
    Related material that references this thread: Idle-Tips-amp-Tricks

    [ this is a note to myself as I organize stuff ]

    Q:? Does MAF and SD use the same idle tuning methods in this thread?
    '02 S10 Xtreme 4.3 Syclone power; AWD, 4L60E; 411 PCM: Walbro 255; 160F thermo: Front coil overs, 4" static drop;

  7. #47
    Joe (Moderator) joecar's Avatar
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    MAF and VE have to be correct; then idle air has to be adjusted to match the actual air that is bypassed in the throttle body.

  8. #48
    Junior Member ecir45's Avatar
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    Created a pdf merging post 1 & 8 for this newb to follow.
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    '92 K1500 Blazer, L31, NV3500, TPI, 14 bolt 3.42, 0411, EFI Live
    '99 SCSB Stepside Silverado, 5.3, 4L60e, 10 bolt 3.42, 0411, EFI Live

  9. #49
    Joe (Moderator) joecar's Avatar
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    Good deal thanks for posting.

  10. #50
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    Quote Originally Posted by ecir45 View Post
    Created a pdf merging post 1 & 8 for this newb to follow.
    This forum has always been a wonderful source of information. I hope to get my Trans Am back in a few weeks, with an all new LS7 engine, tricked out, and will definitely need an assist as this is a 1998 LS1 originally, and has been a challenge to modify.
    I'd rather be blown, bored... AND stroked!
    Now: 447 CID (Corvette 427) , ATI Procharger D-1SC Supercharger

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