626 ES V6-2.5L DOHC (1997)
2. Install a fuel pressure gauge. (Install clamps as shown.)
3. Connect the negative battery cable.
DLC-1 Fuel Pump Relay Jumper Location
DLC-1 Fuel Pump Relay Jumper Location
4. Connect the data link connector terminals F/P and GND with a jumper wire.
5. Turn the ignition switch to ON.
6. Measure the fuel line pressure.
Fuel line pressure: 270-310 kPa (39-45 psi)
Pressure low:
Measure fuel pump maximum pressure. If as specified, fuel line or fuel filter might be clogged or restricted.
Pressure high:
Replace pressure regulator.
