FUEL SYSTEM
F-112prose procedureReplacement
WARNING
Before performing the following operation, release the fuel pressure from the fuel system to reduce the possibility of injury or fire. (Refer to page F-101.)
When replacing fuel system components, keep sparks, cigarettes, and open flames away from the fuel.
Pressure regulator replacement
- 1Disconnect the vacuum hose.
05U0FX-168 - 2Disconnect the fuel return hose.
- 3Remove the pressure regulator.Tightening torque: 7.8—11 N·m (80—110 cm-kg, 69—95 in-lb)
- 4Use new O-ring.
- 5Install in the reverse order of removal.
| Specification | Value |
|---|---|
| Tightening torque (pressure regulator) | ≈76 - 108N·m |
Tightening torque (pressure regulator)
76 - 108N·m
INJECTOR
CAUTION
Obtain the code number and deactivate the audio anti-theft system before disconnecting the battery. (Refer to page T-113.)
Inspection
Operation check
Injector operation check
- 1Warm up the engine and run it at idle.
- 2Listen for operational sound of the injector with a screwdriver or a sound scope.
05U0FX-169 - 3If no sound is heard, measure injector resistance.
- 4If the injector resistance is OK, check wiring to the injector and engine control unit terminals 2A, 2U, and 2V voltages. (Refer to page F-130.)
Injector resistance
- 1Disconnect the injector harness.
05U0FX-170 - 2Measure resistance of the injector with an ohmmeter.Resistance: 12—16Ω
- 3If not as specified, replace the injector.
| Specification | Value |
|---|---|
| Injector resistance | 12—16Ω |
Injector resistance
12—16Ω
Removal
WARNING
Before performing the following operation, release the fuel pressure from the fuel system to reduce the possibility of injury or fire. (Refer to page F-101.)
When servicing the fuel system parts, keep sparks, cigarettes, and open flames away from the fuel.