C15 Acert Help (w/ cat et results)

Lol, yah thats the plan. I feel like it is the root of the problem and cat will eventually end up replacing it anyways. However, If the ecm cures the problem for now I will still replace those harnesses when I get the truck back.

 

Nothing yet, I will call tomorrow and see what there up to and update this thread.

 

Got a call from the cat dealer, they can not get the actuators to function properly. They tried all new actuators on the cylinders that weren't responding with no change, tried new oil sensor for actuators and a bunch of other small things. I kept insisting on the wiring harness but they said there is no way it would fail without a voltage code... They have been in touch with Cat over this and Cat keeps telling them that if it isn't logging codes to not worry about it, lol. To me it seems that if the actuators aren't working on 2 or 3 cylinders aren't those cylinders going to have much higher cylinder pressure? and be more likely to blow a head gasket?

On another note, I had them check the fuel pressure and it is only showing 74psi at idle, 85 at high idle. I did however remove a home made 1/2" thick shim before taking the truck to them because I was worried about the fuel pressure being too high with it so ill let them put the proper high pressure spring kit in and see what it does.

They are telling me there is nothing else they can do as far as actuators go, so I guess I will be changing the harness myself.

 

They said test ecm made no differance.