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Thread: New Tune With scans

  1. 06-08-2008 #1
    01gpgt01
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    New Tune With scans

    Welp I got a new tune, the Car runs 100 times better. No more misfires At Idle or under WOT. I did a 2nd gear WOT low rpm run, When I got up into Higher rpms 5,700 or so I started to get knock, and alot of it (5degrees). I backed off as soon as I seen the knock, I then Logged my next run watching Knock. I didnt see the knock again on 2 additional runs, I know the scan parimeters are not ideal. Anyways heres the scan.http://www.scandepot.net/viewscan.php?pk=5071 . Alittle history, After I got my new tune from ZZP I was very lean 16.4 lfts at idle and 14 at a cruise, I added 3 percent to the Maf airflow VS freq, Only to the 1500-8750 Hz area, Not under the WOT HZ. Is it safe to add 2 more percent to that and drop my AFR to 11.5 (its on 11.7). Or is there a better way to attack this?I didnt touch anything else off their tune. My 02's are droping to 880mv also.
    Last edited by 01gpgt01; 06-08-2008 at 10:04 AM.
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  2. 06-08-2008 #2
    01gpgt01
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    Attachment

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    Wanted to add my mod list. 2001 grand prix GT, ZZp m90,Homemade intake, 3 inch catted down pipe,4.0 pulley, ported blower and LIM, front ported plog, ceramic coated cross over, gtp injectors, 180degree t stat, alite 103 plugs gapped to 49
    Last edited by 01gpgt01; 06-08-2008 at 11:19 AM.
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  3. 06-09-2008 #3
    01gpgt01
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    ANYONE care to give me a hand, How can I get my 02's under WOT to stop droping at high rpms, I start out well it peters out and I get knock near redline. My 02's drop to 880 MV
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  4. 06-09-2008 #4
    Russ K
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    You need a wideband to tune the WOT fueling. Read this thread for more info.
    http://www.hptuners.com/forum/showthread.php?t=8815


    Go to post #17, there is a tune that I did for a 2001 Grand Prix 3800.
    http://www.hptuners.com/forum/showthread.php?t=16815

    Russ Kemp
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