No. 9 Fast Idle/Runs On: Notes

POSSIBLE CAUSES DESCRIPTIONS

9	FAST IDLE/RUNS ON
DESCRIPTION	Engine speed continues at fast idle after warm-up. Engine runs after the ignition switch is turned off.
POSSIBLE CAUSE	ECT sensor or related circuit malfunction Suction control valve (built-in high pressure fuel pump) Fuel injector malfunction Air leakage from intake-air system Throttle body malfunction Accelerator pedal position sensor or related circuit malfunction Cruise control system operation improperly Improper load signal input Improper operation of electric throttle control system Injector driver module or related circuit malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual. (See AFTER REPAIR PROCEDURE ). (See BEFORE REPAIR PROCEDURE ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.

FAST IDLE/RUNS ON

DESCRIPTION

Engine speed continues at fast idle after warm-up.
Engine runs after the ignition switch is turned off.

POSSIBLE CAUSE

ECT sensor or related circuit malfunction
Suction control valve (built-in high pressure fuel pump)
Fuel injector malfunction
Air leakage from intake-air system
Throttle body malfunction
Accelerator pedal position sensor or related circuit malfunction
Cruise control system operation improperly
Improper load signal input
Improper operation of electric throttle control system
Injector driver module or related circuit malfunction
WARNING:
The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services:
- Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
- Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual.
  (See AFTER REPAIR PROCEDURE ).
  
  (See BEFORE REPAIR PROCEDURE ).
CAUTION:
- Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.