4efe distributor wiring question

Discussion in 'ELECTRICAL' started by muz_z, May 26, 2013.

  1. muz_z

    muz_z Fresh Recruit

    I am installing a ems 8860 standalone ecu on a 4efte and have worked everything out except the wiring for the trigger and sync (home) wiring to the new ecu
    It is a 4efe harness
    I am running a 4efe distributor with internal coil are they a 4 tooth trigger ?
    Can someone point me to a wiring diagram for what each wire does in the two plugs for the distributor
    Or what colour wire I should be connecting to to for the trigger and home

    Any help would be much appreciated

    Maury from down under!
    Last edited: May 26, 2013
  2. weeJohn

    weeJohn Paid Member

    There is a PDF in the Awesomely Helpful electrical section should cover it.
  3. muz_z

    muz_z Fresh Recruit

    Thanks for the reply Weejohn

    But I have had another look in the awesomely helpfull section and can only find things that relate to 4efte
    Am I missing something somewhere
  4. weeJohn

    weeJohn Paid Member

    My mistake, I read that wrong, hope this helps make up for it...


  5. muz_z

    muz_z Fresh Recruit

    Ah that's what I needed thanks WEEJOHN very helpfull
  6. muz_z

    muz_z Fresh Recruit

    Ok think I have finally worked it out
    Can some just confirm this
    My trigger from the ems ecu is a green shielded wire from what I can work out it goes to the NE+ pin 21 on the 4efe ecu and the ignition output wire from the ems is a pink wire from what I can work out it goes to IGT pin 6 on the 4efe ecu
    Do I disconnect pin 21 and pin 6 and connect the ems ecu wires to these or do I just splice in?
    If I splice in will this effect the control from the ems ecu? I know I can splice in water temp air intake temp and those sort of things just not sure about the ignition
    side of things as I want to still run the 4efe ecu to keep control of everything else
    Also on the 2 plug 4efe ep91 ecu does it control the radiator fan? As the wiring pin out diagram I have doesn't show a pin out for the radiator fan or do I just run the wire from the ems ecu to the fan relay

    Thanks for any help in advance
    Last edited: Jun 10, 2013
  7. weeJohn

    weeJohn Paid Member

    I dont know how to wire into the EMS ECU so I cant help you there, sorry. The fan is a seperate circuit from the ECU, but its linked to the air con system as well. The main circuit parts for the fan is the switch, which is the sensor mounted on the thermostat housing, pointing towards the bulkhead, its a 1 wire connection. It switches a relay in the engine bay fuse box which powers up the fan directly from there. You could use the ems to control it by simply wiring the fan relay coil connections to your EMS ECU, or leave the switch to do it.
  8. muz_z

    muz_z Fresh Recruit

    Thanks for the reply the fan info is very helpfull
    Just in general if you we're going to wire any aftermarket ecu to the 4efe distributor would you use the NE+ as the trigger from the diagram you posted above and the IGT as the ignition output from the ecu?
    Last edited: Jun 11, 2013
  9. weeJohn

    weeJohn Paid Member

    It depends on whether the ECU works of +ve triggers or -ve triggers, you need to check the specs.
  10. Alex5699

    Alex5699 Fresh Recruit

    good day everyone , i just rebuild my engine from the ground up and when connecting all the wires back i notice my distributor wires pins came out the holder and im not sure what order they go back in .. can someone help me out ? #4efe

    Attached Files:

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