No. 9 Fast Idle/Runs On: Notes

NO. 9 FAST IDLE/RUNS ON (L3 WITH TC) DESCRIPTION AND POSSIBLE CAUSE

9	FAST IDLE/RUNS ON
DESCRIPTION	Engine speed continues at fast idle after warm-up. Engine runs after the ignition is switched off.
POSSIBLE CAUSE	ECT sensor No. 1 or related circuit malfunction Spill valve control solenoid valve malfunction (built-in high pressure fuel pump) Fuel injector malfunction Air leakage from intake-air system Throttle body malfunction APP sensor or related circuit malfunction Improper operation of cruise control system Improper load signal input Improper operation of electric throttle control system 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 SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION". (See BEFORE SERVICE PRECAUTION .) (See AFTER SERVICE PRECAUTION .) 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

POSSIBLE CAUSE

ECT sensor No. 1 or related circuit malfunction
Spill valve control solenoid valve malfunction (built-in high pressure fuel pump)
Fuel injector malfunction
Air leakage from intake-air system
Throttle body malfunction
APP sensor or related circuit malfunction
Improper operation of cruise control system
Improper load signal input
Improper operation of electric throttle control system
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 SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION". (See BEFORE SERVICE PRECAUTION .) (See AFTER SERVICE PRECAUTION .)
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.