No HEFI Connection

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  • Chriscarnales38
    Junior Member
    • Nov 2016
    • 2

    No HEFI Connection

    Hi guys. A customer of mine installed their own Avenger EFI with TBI on a small block Chevy. All was good until they tried the initial setup procedure, which is when I got the call after they had no joy. When you use the handheld screen to set the camshaft, engine size, etc., once ignition is switched on, it displays "connecting" and from there it's supposed to display "HEFI connected". But instead it displays "connect HEFI", and that's about as far as it goes. You can use the little joy stick to scroll down and it will display "Wizard" etc. You go through the menus, cam, engine, distributor etc, go to load up the profile and it then displays "empty" as if there's no file to load. Tried the 2nd hand piece that came with the ECU but no change, and the screen was very dull compared to the 1st. Checked all voltages and connections, and all are by the book. It's as if there's no communication between the ECU and the hand piece. Could the ECU have no program or have lost its programming? Should we plug in a laptop and download the latest file and install it? Tried calling Holley yesterday, but being in New Zealand, sitting on hold forever does not impress nor help the phone bill. Any help would be appreciated. Cheers, Chris.
  • Danny Cabral
    Administrator
    • Dec 2009
    • 35959

    #2
    http://forums.holley.com/showthread....3311#post73311 (Similar 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, Eagle 3.470" forged steel crankshaft & H-beam rods, Wiseco 4.200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/.623" lift/114° LSA H/R camshaft, Trick Flow 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 SS dual 2.5" exhaust, SS off-road X-pipe, SS shorty headers, OEM smog pump converted vacuum pump, 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, highly modified Ford 4R70W transmission, FTI 9.5"/3000 stall/triple disc TCC, B&M Hammer shifter, Stifflers trans crossmember & driveshaft safety loop, FPP aluminum driveshaft, FPP 3.73 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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