My rig is flashing codes....KOEO, 172 173, 211, 327, 332, 542, 556, 172, 173, 211, 327, 322, 542, 556, 172, 173, 211, 327, 332, 542, 556,..( Tells me the following could be bad).HEGO, PiP, EVP, ERG and Fuel pumps. Starts fine. Idles up cold, then drops down like normal. Rev's up. Smokes the tires till i drive out the driveway. Then it sputter and nearly stalls when i give it fuel. If i flip to the rear tank and back, runs just fine ( sometimes). I have changed the fuel filter 20 times, new injectors, plugs, wires, and regulator. What do i change first.....or do i just shoot the damn thing!

 

Check fuel pressure?

Adrianspeeder

 

reply to my own post...found the problem....Crud in the fuel tanks.
Clogged fuel pump and FMU unit. Took the tank to the car wash, changed the pump, cleaned the resevoir, new screen and fuel filter for the pmup. Runs like John Force tuned it.

 

reply to my own post...found the problem....Crud in the fuel tanks.
Clogged fuel pump and FMU unit. Took the tank to the car wash, changed the pump, cleaned the resevoir, new screen and fuel filter for the pmup. Runs like John Force tuned it.