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A poor running fuel pump will also cause all the codes and symptoms you are describing. You need to check actual fuel pressure with a manual fuel pressure gauge at the line to the fuel injectors. The specs are 35-70 psi of fuel pressure with the key turned on.
No problem. I completely understand.
Your engine does not have a Schrader valve test port. You will have to connect a fuel pressure gauge in line at the fuel line connecting to the fuel injectors or at the fuel filter outlet.
The fuel filter should be located on the inside of the frame under the drivers seat under the vehicle. See the directions below.
Sorry, I signed off before 11 because I get up earl for work. The fuel filter is the easer place to get the fuel pressure reading. Also, yes, a clogged fuel filter could cause the same concern.