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Thread: (Simple?) question: How to force Open Loop Idle in TunerPro with a 7747

  1. #1
    Fuel Injected! Dr_Grip's Avatar
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    (Simple?) question: How to force Open Loop Idle in TunerPro with a 7747

    Hi guys,
    I gut a really simple question that I still can't seem to figure out: How do I set idle to Open Loop in TunerPro? With the one switch I found (Min Temperature for Closed Loop) I am unsure whether it only affects Idle Mode...

    Grateful for any pointers!
    Last edited by Dr_Grip; 11-05-2015 at 04:01 AM.

  2. #2
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    This may take some trial and error but you could start by comparing these values from the ASDU disassembly with your calibration:

    Code:
    ; OPEN LOOP IDLE CALIBRATIONS
     ; L05
     ;
     ;----------------------------------------------
    LD29E FCB 4 ; 4 MPH, OPN LP IDLE THRESH
    LD29F FCB 5 ; 2%, OPN LP IDLE THRESH TPS
    LD2A0 FCB 1 ; 25 RPM, Open loop RPM thresh IDLE OFF
    LD2A1 FCB 2 ; 50 RPM, Open loop RPM thresh IDLE ON
    LD2A2 FCB 160 ; 8 Sec's, Open loop IDLE AFR Ratio enable TIME DELAY
    LD2A3 FCB 100 ; 5 Sec's, Open loop IDLE AFR Ratio TIME DELAY
    LD2A4 FCB 137 ; 13.7 Open loop AFR MAX AT IDLE
     ;----------------------------------------------

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