nistuned ecu injector drivers

  • drb5721
    drb5721
    Senior Member
    • 289
    #1

    nistuned ecu injector drivers

    I just got my nistune setup today from buffer. Its apparently is a 88 turbo ecu. I am going to be using it in an '87 with dsm 450cc injectors. Mine uses low impedence injectors from factory, and I believe the 88-89 use high impedence if I am not mistaken. I still have to see if the 450's are high impedence or low so ill know if I have to wire in resistors or not. The nistune board and software changes nothing with the injector drivers, correct?
  • G-E
    G-E
    Junior Member
    • 6320
    #2
    DSM uses low-imp so yes you will need resistors
  • Augustus Maximus
    Augustus Maximus
    Senior Member
    • 1739
    #3
    Nope the lower current transistors are built into the ECU. Ssdly inserting a resistor into the current path of a lo Z circuit is not without tradeoff.
    Cha iro

    enjoy building it yourself.
    if it fails, fuck it.
    at least you gave it a whirl.
  • RedDemon
    RedDemon
    Senior Member
    • 362
    #4
    You should make a resistor harness instead of cutting and splicing the stock one.

    I have an 88 NIStune ECU and using 780cc low imp. injectors. I had a spare fried ECU and used the female socket off of the ECU to make the resistor harness. This way, if I ever change ECU's or use a friends ECU to check something (which I had to do), I can just remove the harness.







    1988 SS #71

    Better to remain silent and be thought a fool, than to speak and remove all doubt.