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Thread: Air/Fuel At 35.6

  1. #1

    Default Air/Fuel At 35.6

    My car was running good and after starting it today, it will not even idle. What does the air/fuel reads on average? Could my WBO2 sensor be bad? Not sure what's going on. Car is smoking also.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,680

    Default

    I'd check fuel pressure (LINK) & the WBO2 sensor (LINK). Ensure there are no exhaust leaks upstream of the WBO2 sensor. Is the fuel pump running on a consistent +12V?
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  3. #3
    Join Date
    May 2014
    Location
    Bostwick, GA
    Posts
    134

    Default

    Plugs look like? Datalogs? Run in Open Loop. Clears up?
    Injector Inspector
    USAF 1960-1964
    Drag racing since 1955

  4. #4

    Default

    I unchecked the Closed Loop and it's running fine. Does this confirm a bad WBO2 sensor? Also, is it OK for me to drive the car like this? Thanks in advance.

  5. #5
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,680

    Default

    Read 6th paragraph: http://forums.holley.com/showthread....2523#post62523 (Holley EFI Tuning Tips & Information)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

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