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Thread: Avenger EFI errattic sometimes.

  1. #1
    Join Date
    Aug 2018
    Location
    StSimons Island, Ga.
    Posts
    4

    Default Avenger EFI errattic sometimes.

    I have an Avenger with HP ECU on a Ford 347 with a C4. I'm up to date on all software & firmware, and received my 3.5" TSLCD last week, and I'm good to go in that regard, I believe. I cleared the ECU of the 500 datalogs that PO had driven to free up my ability to datalog as it was locking up when I tried to initiate through the handheld. The issue I have is that it runs great then it just hiccups and my tach & speedometer on my dash die & reset. Then simultaneously on the TSLCD, CL Comp pegs 100, AFR goes to 40, then my RPM is showing half on the TSLCD of what I'm actually at. The TSLCD then sometimes does a complete restart and and I have a locked screen that says REV 3.5 at top, and does SD card have FW. The monitor screen may come back if I go to idle then RPM and everything resets, and I'm good to go until it happens again. This issue can happen when bouncing into gear, or if I hit a bump or just cruising. I'm leaning to a possible ground or sensor issue. I have been reading all I can on here, and just starting with the datalogging. Thanks for your time.

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,925

    Default

    I'd check your EFI wiring, especially the switched red/white wire and main battery power. Or it could be intermittently losing the RPM signal (distributor pickup or ignition module).
    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
    Aug 2018
    Location
    StSimons Island, Ga.
    Posts
    4

    Default

    I'll check both, but I've been thinking losing RPM. Thanks for your time & fast response.

  4. #4
    Join Date
    Aug 2018
    Location
    StSimons Island, Ga.
    Posts
    4

    Default

    Why would my datalogs have the correct date when taken, but also convert showing 2011?

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