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Does ECU swap requires re[rograming for 1995 3VZE A/T 2X?

Discussion in '2nd Gen 4Runners (1990-1995)' started by Fermin4, Aug 16, 2020.

  1. Aug 16, 2020 at 6:55 PM
    #1
    Fermin4

    #1
    Fermin4 [OP] New Member

    Joined:
    Feb 1, 2020
    Member:
    #12978
    Messages:
    24
    Gender:
    Male
    First Name:
    Adams
    Vehicle:
    1995 2WD 4Runner 3VZ-E Engine OBD-1
    None
    I have one that refuses to run without missing horribly.
    New distributor, plugs, HV cables, igniter, coil, injectors.
    I starts sometimes (fuel Pump OK, pressure gauge hooked up permanently). I gets really rough from 1300 to 2000+ RPM.
    bought three ECU on eBay and do not work, while the original kind of starts and runs very rough
    Checked relays, COR and MFI and some grounds.

    Why the ECU's would not work? cannot be they are all bad can it?
    RPM indicator vibrates back and forth around those RPM but ok on very high RMP's or idling.
    Any suggestions?
     
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    Fermin4, Aug 16, 2020
    #1
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