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  1. #1
    Join Date
    Sep 2004
    Posts
    8

    FiTech "ECU no response"

    I am having trouble getting my FiTech up and running. Ford small block, FiTech EFI, MSD 6. The handheld is working but when I go to initial setup I get "ECU no response". I have a separate wire direct to battery for the +12 volts, the white wire (key) has +12 volts in the on and start position, also tried a separate ground wire from battery to throttle body. The shop that built the motor dyno'd with the FiTech so I am thinking it must be something I have done or not done. Any suggestions?

  2. #2
    Join Date
    Oct 2018
    Posts
    1
    Do you have the key turned on? You want to turn it on as if to start. Now the unit has power and can talk to the computer.

    Bob

  3. #3
    Join Date
    Aug 2007
    Location
    Jonesboro, Arkansas
    Posts
    2,288
    Country Flag: United States
    what bishop said. If that's now the fix, call FiTech.

    Carl Wilson
    1968 Camaro - T-56 6 speed - 383 Stroker, 2014 Mustang GT seats

  4. #4
    Join Date
    Mar 2014
    Location
    Yuma, AZ
    Posts
    600
    Country Flag: United States
    Sometimes the handheld in our car needs unplugged from the EFI to restore communication. Give that a try before you go too far.
    Nelson
    1969 Chevelle "Cone Smasher" Family Project
    https://www.pro-touring.com/threads/...uot?highlight=

    1984 "Rustang" GT, 5.0, 5 Speed Project
    https://www.pro-touring.com/threads/...T-(Slow-Build)

  5. #5
    Join Date
    Sep 2004
    Posts
    8
    Thanks for the help. Got my car running. It was running rich so I adjusted the IAC steps (drivers side screw) down to approx 6, still running rich. I noticed that there are two idle adjustment screws, one on the drivers side and one on the passenger side. Do I have to adjust both?

  6. #6
    Join Date
    Aug 2007
    Location
    Jonesboro, Arkansas
    Posts
    2,288
    Country Flag: United States
    Look at your ecu settings before you start messing with the efi. Again, maybe call FiTech.


    Carl Wilson
    1968 Camaro - T-56 6 speed - 383 Stroker, 2014 Mustang GT seats