Need opinion on ambulance int; problem

[Tony302600]

Well, im the lucky guy that aquired a 04 6.0, 114,000miles /forums/images/%%GRAEMLIN_URL%%/thumbup.gifCP, ambulance with a int. no start / stall. 4,000miles ago other tech couldnt verify it.

 

Codes now: p0336 CKP ckt, p0401, p0404, p0470, p0528, p0679 (#8 glow plug), p1335, p2284 (icp performance), p2614, p2617 ( i know we those codes), u0105 (lost communication with FICM).

 

Now being this is a ambulance and the other tech had it for a week unable to verify it, it got towed in yesterday no start, i start it up this morning fine, and get these codes.

 

I'm leaning torwards a engine harness for sure, and im thinking that the harness is failing causing all these codes, but ive never seen the ICP performance code with a harness problem.

 

This is my list since its a ambulance, Customer Pay, and i can't risk it coming back.

 

Engine Harness

CKP and CMP sensors

EGR valve (failed)

#8 glow Plug ( failed )

ICP sensor (slightly erratic)

 

and thats it.

 

What do you guys think?

 

On edit this was towed from their shop that does all their work because they couldn't figure it out.

[LARRY BRUDZYNSKI]

Tony, Has either one of the Alt's been changed on this ambulance? If so make sure the correct alt.s are in the correct position. Also check the alt. leads. I have seen some pretty funky shit happen.