1. Fuel filter inspection
1) Inspect for continuity between the pressure switch terminals using a DMM.
Note
- If there is continuity, replace the fuel filter.
2) Connect the vacuum pump to the engine side feed pipe of the fuel filter.
3) Seal the feed pipe on the fuel tank side using caps, cloth tape, etc.
Caution
- Make sure to prevent fuel from entering the vacuum pump.
4) Apply a vacuum using a vacuum pump, and inspect for continuity when pressurizing to the standard value.
Standard: -38 to -42 kPa { -0.39 to -0.43 kgf/cm2 / 285 to 315 mmHg }
Note
- If there is no continuity, replace the fuel filter.