7.3 rough idle no power no smoke

[boostemup73]

The other day my 02 7.3 started acting up. The truck just didn't sound right. I put a little into the throttle and there was no power. I pulled over and it was idleing rough almost like it was missing. But im not getting any unusual smoke and only seems to do this after a few miles of driving. I scanned my truck and got p0603 internal control module KAM error and p0605 internal control module ROM error. Any ideas??

 

[Tom S]

You sure make it sound like it is not running on all 8. Can you do buzz and contribution tests on it?

 

[KPSquared]

Make sure your UVCH isn't unplugged under the valve cover. Make sure the wiring is all good.

We lost a whole bank on one side of the motor, weird codes etc... turns out it just came unplugged under the cover on the one side.

 

[boostemup73]

Yea I could get a buzz test done next week but I tore the valve covers off and did an ohms test on the harness' one had 3 of the 4 connectors with high resistance so imma go get new harness' and hope it fixs the problem!