Unlocking a 3-plug Ecu?

  1. #1
    yo,

    guys, I keep forgetting what the routine is to unlock an ECU - I've got a second one which I'll have as a remapped version for running most of the time, then a standard one for MOT's and stuff.

    Is it, have the engine running and yionk the immobiliser block out?

    Can anyone give me the low down?!

    ta!