tested the fuel pressure at idle with vaccum line disconnected and it put out 42 psi.i did put a set of new plugs in it and i swapped over a another ecu to test it.after all this it ran the same.i unplugged injectors while it was running (the ones i could reach.it made the car run rough with each one i unhooked,but that is only at idle.the car idles great,just when you put a load against the motor is when it acts up.