Injector disable MMCD 1.8g question!

[chef]

When I disable injector 1, 2 and 3 one by one, the engine almost dies... But when I disables the 4th injector nothing happens to the engine at idle. Idle is still at 750 with this injector off.

Is this normal??

When I take the harness off at injector 4, nothing happens. But if I drive the car with this off, the engine drives poorly.

Stock eclipse gsx 90

Stian

 

[chef]

Nobody tried to disable injector #4 ???


Stian

 

[stinktown1]

When I disable injector 1, 2 and 3 one by one, the engine almost dies... But when I disables the 4th injector nothing happens to the engine at idle. Idle is still at 750 with this injector off.

Is this normal??

When I take the harness off at injector 4, nothing happens. But if I drive the car with this off, the engine drives poorly.

Stock eclipse gsx 90

Stian

NO
If you are doing what you say you are and nothing happens when you get to #4 then you have a plug that is no good or a fuel inj that is plugged or the ecu is not triggering that inj.
Have you done a compresion test ,what do the plugs look like

 

[chef]

Yeah, my plug to that injector was bad. If I touches it a little, the engine idles better! Thank you for your help!

Stian