2004 175 DFI Model 1175D83CY - Serial 0T972330 System Smartcarft ECM
I found water in the fuel tank and proceeded to clean the entire system.
Cleaned the tank
Cleaned the lines
Cleaned the vapor separator
changed the fuel filter
It starts but idles rough. As if miss firing in a one cylinder or two.
Checked coils - All good.
Removed and cleaned all spark plugs ( I was in there anyway)
Cleaned the fuel injectors (as best as possible at home) checked ohms - all good.
Cleaned the air injectors (as best as possible at home) checked ohms - all good.
Cleaned and checked tracker valve, fuel pressure regulator, air pressure regulator. All good.
Air pressure reads 76 PSI
Fuel pressure also reads 78 PSI
I am testing the low and high pressure fuel pumps.
The high pressure pump seems ok. If I disconnect it, the engine will not start.
The low pressure pump, when disconnected does not affect the motor. Starts and runs same.....poorly....
Is that my problem??? Before I buy a new pump, how do I test it? I do not hear it run when the key is turned on... dam buzzer.
What am I missing?
Thanks in advance for any suggestions and guidance.