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Can HP EFI use two WBO2 sensors?

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  • Can HP EFI use two WBO2 sensors?

    Sorry, but couldn't find it in a search.

  • #2
    Last I heard you could add a second wideband as a sensor and display the output, but the EFI software wouldn't allow you to use the second sensor for fuel control. You need the Dominator ECU to do that.


    • #3
      Yes, some HP users (and now Terminator X/X Max users) add a 2nd stand-alone WBO2 sensor, by wiring the controller's 0-5V Output into a 0-5V Input (created in the Holley EFI Inputs/Outputs ICF) for monitoring/datalogging purposes; just can't run Closed Loop off of it. (Dominator EFI users can add 4, 6 or 8 stand-alone WBO2 sensors for monitoring purposes due to the increased I/O - LINK.) Only the Dominator ECU is capable of running Closed Loop with dual WBO2 sensors. Just so we're clear, you must use the Holley EFI Bosch or NTK WBO2 sensor as the primary "Wideband O2 Sensor" (Engine Parameters). Terminator X/X Max users can only use the Bosch LSU4.9 WBO2 sensor (LINK) with the Holley 558-463 WBO2 Adapter Harness. (How To Create A Custom Input/Output) (Additional Information - Related Forum Thread)
      May God's grace bless you in the Lord Jesus Christ.
      '92 Ford Mustang GT: 385"/6.3L SBF, Dart SHP 8.2 block, forged steel crankshaft & H-beam rods, forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/.623" lift/114° LSA camshaft, TFS R-Series FTI Comp Ported intake, BBK 80mm throttle body, Holley Dominator MPFI & DIS, Holley 36-1 crank trigger, MSD 1x cam sync, PA PMGR starter, PA 200A 3G alternator, Optima 34/78 Red battery, 100HP progressive dry direct-port NOS, R134a A/C, Spal Dual 12" HP 3168 CFM fans, Frostbite 3-core aluminum radiator, Pypes dual 2.5" exhaust, off-road X-pipe, shorty headers, Earl's -6AN fuel system plumbing, Walbro 255 LPH in-tank pump & Pro-M -6AN hanger, S&W subframe connectors, BMR upper & lower torque box reinforcements, LenTech Strip Terminator wide-ratio Ford AOD, 10" 3000 RPM C6 billet converter, B&M Hammer shifter, Stifflers transmission crossmember & driveshaft safety loop, 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.


      • #4
        Thanks a million.


        • #5
          Interesting approach to look at each cylinder; never thought of that.
          93 Notchback, 383ci SBF, Highports, 80mm turbo, custom cam, TH400