99 f550 7.3 auto bucket truck and now have a lot of codes and loss of power

p0237
p0236
p0476
p0603
p1277
p1273

history of the truck

had a blown turbo what caused coolant to be pumped into the fuel tank and fuel in the coolant reservoir (white slime in fuel tank) was cleaned out once they ran it. then i got the truck i resealed the oil cooler had all the injectors rebuilt new glow plugs new turbo cleaned out the fuel tank again. have checked the wires and gasket to injector 3 and 7 and getting 0.1-0.0 ohm
tryed to clear the codes but they wont clear even unpluged battery for a day and still saved the codes

thanks for any help

 

That is alot of codes to come back directly. I will essentially consider this a bump for more information, but the p0236 and 237 point to map sensor issues IIRC. The 476 is a backpressure sensor code, the 603 is just a KAM error, probably from disconnecting the batteries, then you have 2 injector high to low opens. Both on the passenger's side.

The fuel in coolant is usually related to cracked injector cups, so I don't know how cleaning the system really helped.

I would start by pulling the valve cover on PS and checking UVCH wiring and plug. I'm not sure why the codes will not clear for you though. What type of diagnostic tool are you using?

 

Did you change the injector cups? The turbo, injectors, or oil cooler won't cause the coolant in the fuel tank.

For the loss of power, how much of a loss are we talking? Have you checked for any boost leaks after the turbo re-install? Checked for any plugged screens or filters since the fuel tank cleaning? Did the cleaning process cause the liner inside the tank to de-laminate and cause a fuel restriction?

 

checked UVCH wiring and plug changed out map sensor and loss of power have been solved. but still have a few more codes

p1293 what is this ?
p0476 where is the backpressure sensor located
p1277
p1273

we have another truck with the same year and motor that has freshly rebuilt injectors I will try swaping 7 and 3 with the other truck and see.

 

You could just try swapping the solenoids as that is where the electrical portion is that would be causing a High to low open, the 1293 is saying that the entire bank is getting high to low open I believe.

Here is the Back Pressure sensor cleaning tips, Ford Powerstroke Diesel EBP Sensor and Tube Cleaning you should be able to view the PSI with a scan tool live data PID and see what it is at.

This might help find the issue.

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