05 f450. Bulletproofed by previous owner.
truck has 250k miles
​​we hotshot with this truck.. not super term savy
Ok so a cpl months ago it started to run a little rough. Codes were cyl 1 contribution balance, replaced injector 1
ran okay for 1 hr, then cyl 2 contribution balance.
replaced injector 2. Didn't run right so we pulled both injectors 1 & 2 and reinstalled.
still was running rough and throwing injector codes for those cylinders.
my regular mech said i may not have installed correctly, so i took it to him to diag. He replaced both injectors, he said it was a fuel delivery issue, so we replaced ficm and fuel pump at water separator. Truck ran half decent.
I had to work so I took my other truck on the road.
Now I have need for this 6.0. It's now been lag to start. About 10-15 seconds, stumbles and miss once running. pulled code i got injector 1 circuit high
Replaced injector 1 again. Now I have injector 2 cont balance.
I just replaced inj harness, still no change.
I am thinking either electrical or pressure. When 1 is running fine the other is not. It's back and forth same 2 injectors. Fix 1 the other goes.
Where we are now.
New inj #1, new inj harness
code for #2 contribution balance
Takes 10 seconds to start, runs super smooth and quiet once started until idle picks up, then the clack and miss comes.
sensor on valve cover is confirmed good.. no reader to check ipr. All ficm voltages show good.
oil level and recent oil change. Fuel filters are good too.