I have tried ways to get around the CEL but not much has worked. Tje ECU is able to figure out that it is not controlling fuel even if it still sees the correct impedance of the injector circuit.

The best way to compat emissions and inspection is to route the harness with the factory harness and to set the harness up so it is minimal work to change back to stock fuel injectors a few days before you run the testing.

My setup: The MS harness has the factory plug on it for the injector harness. the factory harness just dangles. So when testing comes up i simply change out the injectors and flip flop the harness and MS harness plug to give the stock ECU fuel control. The rest stays the same and i clear my CEL. NOw for spark i will do the same.

Take me 1 hour to prep for emissions testing.

If you really wanted to get painless, set up you intake manifold liek the 8 injector setup and leave the stockers in place so all you need to do is connect the factory harness up to the stockers and disconnect the MS harness from your Larger injectors in the secondary location. You would obviously need to set up fuel lines so that both sets of injectors have fuel plumbed to them at all times.

Terry