6.0 frustration

[FORD-HEAD]

Greetins this is ford-head i am new to this forum but not new to ford. Anyway i have been working on an F550 Super duty for
some time now and have been driven to frustration. It has been throwing this code (injector circuit low cyl #2, #3, #5 and #8. I swicthed the FICM with a
reman and thought that would fix it but that did nothing. Could it be that these four injector all went bad at the same time? Need help

[67rstbkt]

Could be the wiring harness from the FICM to injectors, check for any chaffing on the wiring. Also, I would check the voltage out of that FICM (Key on, Cranking, and Running). I know you said you replaced it, but I would still verify

[FORD-HEAD]

Thanks will check wiring

[southend]

Why did it come in? What are the symtoms, does it run?

Sent from my phone that somebody didn't help me get.

[FORD-HEAD]

@ Southend.
Im not sure why it came in. At first i would get fault code for cyl #2 with the engine running rough. Now im getting fault codes on cyl # 2,3,5,8 with no start.

[southend]

Try this to check the injector coils......Ohm tested #4 injector.

Sent from my phone that somebody didn't help me get.

[FORD-HEAD]

@ Southend

Thanks! will check

[southend]

See if all of your injectors are buzzing when you turn the key on.

Sent from my phone that somebody didn't help me get.