3.
Measure resistance between the terminals 1 and 2 of the fuel pressure regulator connector.
The fuel pressure-control vlave sets the correct pressure in the rail as a function of engine loading, and manitains it at this level. If the rail pressure is excessive, the pressure-control valve opens and a portion of the fuel returns from the rail to the fuel tank via a collector line. If the rail pressure is too low, the pressure-control valve closes and seals off the high-pressure stage from the low-pressure stages. Fuel pressure control valve is integrated in high-pressure pump.
Temperature ℃(℉) | Resistance (Ω) |
20(68) | 2.9 ~ 3.15 |
Turn the ignition key off.
Disconnect the fuel pressure regulator connector.
Measure resistance between the terminals 1 and 2 of the fuel pressure regulator connector.
Refering to "SPECIFICATION", check that the resistance is within specification.
