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ECMlink Back with another log

Posted by Sjd6795, Nov 8, 2020

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  1. Sjd6795

    Sjd6795 Proven Member

    608
    118
    Joined May 14, 2014
    Wilsonville, Oregon
    So my closed loop operates fine but I currently have open loop locked because it seems to be more consistent and I want to focus on WOT. I just fixed a huge boost leak where the motor mount had worn a hole in my j pipe and the car hauls ass, however I am still seeing a ton of knock and its pulling all my timing. My afr follows my map pretty well when on the throttle so I'm unsure why I am seeing so much knock.

    I did two pulls in this log 3rd/4th gear does anything obvious stick out? I noticed my combine fuel trims are negative when the knock happens but my afr is fine?
     

    Attached Files:

    Street Build 737  13

    1997 Mitsubishi Eclipse GSX
    322 whp · 331 lb/ft · 2G DSM
    Sjd6795

    Street Build 1K  0

    1991 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
  2. Sjd6795

    Sjd6795 Proven Member

    608
    118
    Joined May 14, 2014
    Wilsonville, Oregon
    Also just noticed now that it's getting colder if my car sits outside all night trying to start it up is so rough. The idle afr fluctuates from 13 to 18+ and nearly dies a few times. I've adjusted the coolant temp fuel adjustment and it doesnt help. I've also noticed when its super cold my aem wideband switches modes on it owns from P00 P01 P02 P04.

    If I have my car in the garage around 60 or 70 degrees it fires right up and idles perfectly.
     

    Street Build 737  13

    1997 Mitsubishi Eclipse GSX
    322 whp · 331 lb/ft · 2G DSM
    Sjd6795

    Street Build 1K  0

    1991 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
  3. Vegas Smith

    Vegas Smith Proven Member

    4,200
    2,046
    Joined Dec 2, 2002
    Houston, Texas
    1. There is something wrong with your knock sensor.
    2. Unclick disable MAF compensation.
    3) AFRs look decent but could use a little more work getting wbfactor close to zero throughout the majority of the pull.
     

    Street Build 5K  4

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
    1990TSIAWDTALON likes this.
  4. TK's9d2TSi

    TK's9d2TSi Supporting Member

    4,414
    1,749
    Joined Sep 11, 2017
    Cincinnati, Ohio
    Dial in your fuel trim at idle. I made some adjustments. You can see where the knock starts at 25 second mark that you're super lean.

    I made some adjustments to the your maf comp, zeroed timing and fuel sliders.
     

    Attached Files:

    • sjd.ecm
      File size:
      4.4 KB
      Views:
      11

    609  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    673  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 4K  6

    1992 Eagle Talon TSi AWD
    12.2 @ 120 · 1G DSM
    Loading...
    1990TSIAWDTALON and Sjd6795 like this.
  5. Sjd6795

    Sjd6795 Proven Member

    608
    118
    Joined May 14, 2014
    Wilsonville, Oregon
    Ok made the adjustments to idle and cruise in closed loop still got to work on cruise a little. I did slightly tap into the throttle and the knock still wants to appear. I appreciate the help and tune adjustments, I'll get another log uploaded in the morning when I'm off work.
     

    Street Build 737  13

    1997 Mitsubishi Eclipse GSX
    322 whp · 331 lb/ft · 2G DSM
    Sjd6795

    Street Build 1K  0

    1991 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
    1990TSIAWDTALON likes this.
  6. Sjd6795

    Sjd6795 Proven Member

    608
    118
    Joined May 14, 2014
    Wilsonville, Oregon
    So I've got most of the knock eliminated I only got 2.8 degrees of knock for a small moment. Much better then the constant 12 counts. I had to pull my maf comp above 2000hz to 20.3, the idc on my 680cc is 95% I could probably benefit with a few psi higher fuel pressure.
     

    Street Build 737  13

    1997 Mitsubishi Eclipse GSX
    322 whp · 331 lb/ft · 2G DSM
    Sjd6795

    Street Build 1K  0

    1991 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
  7. TK's9d2TSi

    TK's9d2TSi Supporting Member

    4,414
    1,749
    Joined Sep 11, 2017
    Cincinnati, Ohio
    Post a log. At 95% you’re running out of injector. What’s your bfp?
     

    609  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    673  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 4K  6

    1992 Eagle Talon TSi AWD
    12.2 @ 120 · 1G DSM
    Loading...
  8. Sjd6795

    Sjd6795 Proven Member

    608
    118
    Joined May 14, 2014
    Wilsonville, Oregon
    It's sitting right around 43, my idc was fine on the stock fpr but I was getting 52 base pressure LOL.

     
    Last edited: Nov 13, 2020

    Street Build 737  13

    1997 Mitsubishi Eclipse GSX
    322 whp · 331 lb/ft · 2G DSM
    Sjd6795

    Street Build 1K  0

    1991 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
  9. TK's9d2TSi

    TK's9d2TSi Supporting Member

    4,414
    1,749
    Joined Sep 11, 2017
    Cincinnati, Ohio
    Can't open that log
     

    609  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    673  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 4K  6

    1992 Eagle Talon TSi AWD
    12.2 @ 120 · 1G DSM
    Loading...
  10. Sjd6795

    Sjd6795 Proven Member

    608
    118
    Joined May 14, 2014
    Wilsonville, Oregon
    Sorry something odd happened with Google drive.
     

    Attached Files:

    Street Build 737  13

    1997 Mitsubishi Eclipse GSX
    322 whp · 331 lb/ft · 2G DSM
    Sjd6795

    Street Build 1K  0

    1991 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
  11. TK's9d2TSi

    TK's9d2TSi Supporting Member

    4,414
    1,749
    Joined Sep 11, 2017
    Cincinnati, Ohio
    You need to go full throttle, 100%. That's one of the first thing to do BEFORE tuning.



    There's a part two also.
     

    609  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    673  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 4K  6

    1992 Eagle Talon TSi AWD
    12.2 @ 120 · 1G DSM
    Loading...
    C-note89ky likes this.
  12. Sjd6795

    Sjd6795 Proven Member

    608
    118
    Joined May 14, 2014
    Wilsonville, Oregon
    Was afraid to go WOT LOL I feel like this thing will fall apart. On a side note, I ditched the maf and got speed density installed. So I'm back at the start with tuning, I've got my isc as close to 30 as I can get it adjusting it anymore its either below 10 or above 50, my TPS fluctuates for some reason and the closest I can get it is 0.61-0.63 or 0.63-0.65 my fuel trims seem ok at idle? I was making adjustments once it was fully warmed up however when my fans kick on the car adds about 4% fuel until they shut off again.
     

    Attached Files:

    Street Build 737  13

    1997 Mitsubishi Eclipse GSX
    322 whp · 331 lb/ft · 2G DSM
    Sjd6795

    Street Build 1K  0

    1991 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
  13. TK's9d2TSi

    TK's9d2TSi Supporting Member

    4,414
    1,749
    Joined Sep 11, 2017
    Cincinnati, Ohio
    Looks good.
    Under fuel/rpm, select simulate idle switch from tps
    Zero out your maf comp since you're sd now.
     

    609  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    673  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 4K  6

    1992 Eagle Talon TSi AWD
    12.2 @ 120 · 1G DSM
    Loading...

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