SuperMID installation - help needed!

[landspeed]

It has an 'injector cutoff' thing, which basically cuts off the injectors, while still making the ECU think the injectors are firing.

When this little box has cut the injectors 'off', then the ECU is still sending the pulses to the injectors, but the box is stopping the pulse getting to the injectors.

When the injectors are cut 'off', the SuperMID works perfectly fine (although, in reality, the voltages are exactly the same!). Although, of course, the car is slowing down because there is no fuel!.

When the box is letting the signal go through normally, then the SuperMID does all the bizarre things it was doing, as above.

If I remove this box from the wiring completely (which I have just done), then
the SuperMID only works in the 'faulty' mode as described above. Meaning that it doesn't like my injectors, and that the only way to make it work is to use the LPG cut-off box.

It seens that Nissan ECCS is different from other injector systems somehow?

Thanks for all the help!

Matt