LB7: 2001 FICM bad?

[D-MAX Mafia]

Is there anyway to test if the FICM is bad? Did an injector install and #7 injector is still showing bad. Could a bad FICM be the cause?

What would a new one cost?

 

[paint94979]

Is there anyway to test if the FICM is bad? Did an injector install and #7 injector is still showing bad. Could a bad FICM be the cause?

What would a new one cost?

history of the engine? estimated hp? how high is the balance rate?

 

[Chevy1925]

Is there anyway to test if the FICM is bad? Did an injector install and #7 injector is still showing bad. Could a bad FICM be the cause?

What would a new one cost?

have you done return rate tests on the suspected injectors?

 

[D-MAX Mafia]

history of the engine? estimated hp? how high is the balance rate?

Balance rate is showing +15 on #7. All others are -7. Truck is all stock except for a 4" exhaust.

 

[D-MAX Mafia]

have you done return rate tests on the suspected injectors?

No.

 

[Tony Burkhard]

You should do a compression test.

I have new FICM's for $200

 

[D-MAX Mafia]

You should do a compression test.

I have new FICM's for $200

Ok I'll do that. Might be ordering one from you tomorrow if another new injector doesn't fix it.

 

[RKTMech]

Think if you might have tightened one of the #7 injector wire nuts to tight and the wire swung around far enough to touch the valve cover? Get a schematic for the 01 FICM and see if #7 wire connections are shorted to ground, should unplug ECM connections also.

 

[D-MAX Mafia]

Think if you might have tightened one of the #7 injector wire nuts to tight and the wire swung around far enough to touch the valve cover? Get a schematic for the 01 FICM and see if #7 wire connections are shorted to ground, should unplug ECM connections also.

Connections were good and not touching anything. Just pulled the injector to get swapped out tomorrow for another one. If that still doesnt work I'll know its something else.