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Thread: Closed Loop/Learn

  1. #1

    Default Closed Loop/Learn

    Have a quick question. If you set your Closed Loop Parameters to only allow fuel to be added and not taken out, but in the Learn Parameters you have it set up that you it can Learn by adding fuel and subtracting, will the computer start to put in negative values in the Learn Table? (Assuming that the tune up is too rich compared to the Target Air/Fuel Ratio)? I know that Closed Loop Compensation percentage will just sit at 0% because I have all the negative table values zeroed out but will the Learn Table populate with negative values in turn leaning up my tune up slowly?

    Reason for the question is I'd like to have Closed Loop always on and allow for fuel to be added if ever needed, but not to pull fuel. But I'd like the Learn Table to still be able to slowly adjust itself slightly in any direction if ever needed. (I have all values at 5% and the Gain set at 25%.)

  2. #2
    Join Date
    Dec 2009


    Learning only happens in Closed Loop mode. Read this thread! (Closed Loop & Learn Table - Especially posts #2, #6 & #11.)
    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.

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