Fuel supply system

A Idle adjusting screw 6. Adjust the idle speed, if necessary, by turning the idle adjusting screw. 7. Turn the ignition switch OFF. 8. Reconnect the 2P connector on the IAC valve, then remove BACK UP (7.5 A) fuse in the engine compartment fuse box for 10 seconds to reset ECM. 9. Restart and idle the engine with no – load conditions in which the headlights, blower fan, rear screen demister, cooling fan, and air conditioner are not operating for one minute, then check the idle speed.

Note: (KS) Remove No. 10 (7.5 A) fuse in the passenger compartment fuse box, then check that the headlights and side marker lights are off.

The idle speed should be: 10. Idle the engine for one minute with highlights at MAIN BEAM and rear screen demister ON and check the idle speed. The idle speed should be: 11. Idle the engine for one minute with heater fan switch at HI and air conditioner ON, then check the idle speed. The idle speed should be:

Note: If the idle speed is not within specification, see Idle control system Symptom Chart.

FUEL SUPPLY SYSTEM

Fuel Pressure

Relieve the fuel pressure as follows: WARNING:

• Do not smoke while working on the fuel system.
  Keep open flames or sparks away from your work area.
• Be sure to relieve fuel pressure while the engine is off.

Note: Before disconnecting fuel pipes or hoses, release pressure from the system by loosening the 6 mm service bolt at the fuel rail.

1. Disconnect battery earth lead. 2. Remove fuel filler cap.

A Sealing bolt
B Fuel rail
C Absorbent cloth 3. Position absorbent cloth around sealing bolt. Slacken bolt to relieve fuel pressure. Retighten bolt to 12 Nm.

Note:

• A fuel pressure gauge can be attached at the 6 mm sealing bolt hole.
• Always replace the washer between the sealing bolt and the special banjo bolt, whenever the sealing bolt is loosened to relieve fuel pressure.
• Replace all washers whenever the bolts are removed to disassemble parts.