I have a 2002 BF225 that had an intermittent alarm that wound up being O2 sensor. After replacing the sensor the engine ran great. Came back 2 days later and engine cranks but won't start. I pulled the plugs and checked for spark which I have. I did find them to them to have carbon build up, so I replaced them. I replaced high/low fuel filters and then hooked pressure gauge up. Turned the key without cranking and heard the HP run for 2sec. Checked the pressure gauge and had 0psi. Question I have is shouldn't I have 41-48psi at the gauge? Seems to me like the vst is not filling up enough to get fuel to the HP pump. Running out of hair to pull out, I would appreciate anyone who has any insight. Thanks
Checks Done so Far:
- Drained VST / Removed & Cleaned (Clean no gunk or debri)
- Replaced high / low fuel filters
- Bench tested fuel line cut solenoid
- Pressure check HP (0psi)
- Replaced HP fuel pump
- Ran aux fuel tank
- Checked safety lanyard
- Checked all fuses
Checks Done so Far:
- Drained VST / Removed & Cleaned (Clean no gunk or debri)
- Replaced high / low fuel filters
- Bench tested fuel line cut solenoid
- Pressure check HP (0psi)
- Replaced HP fuel pump
- Ran aux fuel tank
- Checked safety lanyard
- Checked all fuses