Remove the injectors from the fuel supply manifold. Discard the O-ring seals. Install the new fuel injectors Use a torque wrench to tighten the retaining bolts for the fuel supply manifold
Disconnect the battery negative cable and release fuel system pressure. Remove the vacuum hoses and injectors from the fuel supply manifold,do not remove O-ring seals. Finally install the new injector.
From what I have seen there is no independent driver for your injectors. Injectors are controlled by the ECM. Locate it under the dash and swap in a new one.
