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Thread: Engine bogging off idle.

  1. #1

    Default Engine bogging off idle.

    I have a LS3 3” exhaust, race cats and Flowmaster DXB mufflers otherwise stock.Engine is bogging a lot off idle and a bit up in the rpm, very good at WOT. I have increased the AE vs TPS up to 50 lb/hr in increments, it’s getting better but not good. Suggestions?
    Another problem, in the Learn Table I don’t get any corrections just zeros. I saw on YouTube they said that if you change values in Fuel Modifiers the Dominator doesn’t enter Learn mode. So I set the values to 100 and 0.0 in Coolant Temp Enrichment and 100 in the Air Temp Enrichment, but still no reading in the Learn Table.
    Closed Loop/Learn is Enabled in System Parameters. Can you please help. Thanks.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    25,060

    Default

    http://forums.holley.com/showthread....5760#post45760 (Scroll down to "Learn Issues, Self-Tuning".)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

  3. #3

    Default

    I could remote connect over the Internet and fix/dial this in while talking to you on the phone. It's what I do. https://www.fastmanefi.com/tuning-help or call me at 209-247-6497.

  4. #4

    Default

    Thanks a lot Danny, I’ll try it tomorrow.

    And thank you Fastmanefi. Not only do I want my Dominator to Learn, I'd like to learn this myself as well. I’ll give it a try, and if unsuccessful I’ll give you a call.

  5. #5
    Join Date
    Nov 2014
    Location
    Ont. Canada
    Posts
    1,556

    Default

    Learn to datalog.

  6. #6
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    25,060

    Default

    Good Point. Scroll to end: http://forums.holley.com/showthread....2523#post62523 (Holley EFI Tuning Tips & Information)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

  7. #7

    Default

    Quote Originally Posted by Joystick View Post
    Thanks a lot Danny, I’ll try it tomorrow.
    And thank you Fastmanefi. Not only do I want my Dominator to Learn, I'd like to learn this myself as well. I’ll give it a try, and if unsuccessful I’ll give you a call.
    80% of why people call me is for the one-on-one training. You remember better when it's your engine. Anyway, I'm here if you need me.

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