SFI SYSTEM PROBLEM SYMPTOMS TABLE

Tip:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Table 1. SFI System
Symptom	Suspected Area	Link
Engine does not crank (Does not start)	Battery	Click here
	Starter assembly (w/o Stop and Start System)	Click here
	Starter assembly (for CVT models with Stop and Start System)	Click here
	Starter assembly (for M/T models with Stop and Start System)	Click here
	Starter signal circuit	Click here
	Entry and Start System (for start function) (w/ Entry and Start System)	Click here Click here
	Stop and Start System (w/ Stop and Start System)	Click here
	VC output circuit (ECM 5 V output)	Click here Click here
	Park/neutral position switch assembly (for CVT models)	Click here
	Clutch start switch assembly (for M/T models)	Click here
No initial combustion (Does not start)	Immobiliser system (w/ Entry and Start System)	Click here Click here Click here
	Immobiliser system (w/o Entry and Start System)	Click here Click here
	ECM power source circuit	Click here
	VC output circuit (ECM 5 V output)	Click here Click here
	Ignition system	Click here
	Fuel pump control circuit	Click here
	Fuel injector assembly	Click here Click here
	Crankshaft position sensor	Click here
	Intake system	Click here Click here
	Valve timing (check for loose or jumped teeth on timing chain)	Click here
	No. 1 valve rocker arm sub-assembly*	Click here
Engine cranks normally but difficult to start	ECM power source circuit	Click here
	Flow chart [Engine difficult to start]	Click here Click here
	Throttle body with motor assembly	Click here
	Fuel pump (for high pressure side)	Click here
	Fuel pump (for low pressure side)	Click here
	Engine coolant temperature sensor	Click here
	Fuel pump control circuit	Click here
	Ignition system	Click here
	Spark plug	Click here
	Compression	Click here
	Fuel injector assembly	Click here Click here
	Crankshaft position sensor	Click here
	Intake system	Click here Click here
	Valve timing (check for loose or jumped teeth on timing chain)	Click here
	No. 1 valve rocker arm sub-assembly*	Click here
Incomplete intermittent combustion occurs (Does not start)	Fuel pump control circuit	Click here
	Ignition system	Click here
	Fuel injector assembly	Click here Click here
	Crankshaft position sensor	Click here
	Intake system	Click here Click here
	Valve timing (check for loose or jumped teeth on timing chain)	Click here
High engine speed	Throttle body with motor assembly	Click here
	ECM power source circuit	Click here
	PCV system	Click here
	PCV valve	Click here
Low engine speed (Poor idle)	Fuel pump control circuit	Click here
	Throttle body with motor assembly	Click here
	Fuel injector assembly	Click here Click here
	Fuel pump (for high pressure side)	Click here
	PCV system	Click here
	PCV valve	Click here
	Intake system	Click here Click here
	No. 1 turbo pressure sensor	Click here
	Electric water pump assembly	Click here
Rough idle	Flow chart [Rough idling]	Click here Click here
	Throttle body with motor assembly	Click here
	Fuel injector assembly	Click here Click here
	Fuel pump (for high pressure side)	Click here
	Ignition system	Click here
	Compression (engine mechanical)	Click here
	Fuel pump control circuit	Click here
	Spark plug	Click here
	Intake system	Click here Click here
	Valve timing (check for loose or jumped teeth on timing chain)	Click here
	No. 1 valve rocker arm sub-assembly*	Click here
	No. 1 turbo pressure sensor	Click here
	Electric water pump assembly	Click here
Hunting (Poor idle)	Throttle body with motor assembly	Click here
	ECM power source circuit	Click here
	Fuel pump control circuit	Click here
	Spark plug	Click here
	Intake system	Click here Click here
	Electric water pump assembly	Click here
Hesitation/Poor acceleration (Poor driveability)	Fuel injector assembly	Click here Click here
	Fuel pump control circuit	Click here
	Fuel pump (for high pressure side)	Click here
	Ignition system	Click here
	Spark plug	Click here
	Intake system	Click here Click here
	Valve timing (check for loose or jumped teeth on timing chain)	Click here
	No. 1 turbo pressure sensor	Click here
	Turbocharger system (intake system air leak, blockage, clogged)	Click here
	Vacuum regulating valve assembly	Click here
	Waste gate valve (turbocharger sub-assembly)	Click here
	Waste gate valve actuator (turbocharger sub-assembly)	Click here
	Air by-pass valve (turbocharger sub-assembly)	Click here
	Turbocharger sub-assembly	Click here
	Electric water pump assembly	Click here
	No. 1 valve rocker arm sub-assembly*	Click here
	Brake override system	Click here
Lack of power	Flow chart [Lack of power]	Click here Click here
	Turbocharger system (intake system air leak, blockage, clogged)	Click here
	Flow chart [Lack of power (turbocharger system)]	Click here Click here
	Vacuum regulating valve assembly	Click here
	Waste gate valve (turbocharger sub-assembly)	Click here
	Waste gate valve actuator (turbocharger sub-assembly)	Click here
	Air by-pass valve (turbocharger sub-assembly)	Click here
	Turbocharger sub-assembly	Click here
Surging (Poor driveability)	Fuel pump control circuit	Click here
	Spark plug	Click here
	Fuel injector assembly	Click here Click here
	Electric water pump assembly	Click here
	No. 1 valve rocker arm sub-assembly*	Click here
Engine stalls soon after starting	Flow chart [Engine stalls]	Click here Click here
	Fuel pump control circuit	Click here
	Throttle body with motor assembly	Click here
	Crankshaft position sensor	Click here
	Ignition system	Click here
	Fuel pump (for high pressure side)	Click here
	Intake system	Click here Click here
	Valve timing (check for loose or jumped teeth on timing chain)	Click here
	No. 1 turbo pressure sensor	Click here
	Electric water pump assembly	Click here
	Shift solenoid valve SL (K313 CVT) (CVT models)	Click here
Engine stalls soon after slow down	Flow chart [Engine stalls]	Click here Click here
	Fuel injector assembly	Click here Click here
	Throttle body with motor assembly	Click here
	ECM	Click here Click here
	Crankshaft position sensor	Click here
	Ignition system	Click here
	Air by-pass valve (turbocharger sub-assembly)	Click here
White smoke emitted	Flow chart [Turbocharger oil leak and white smoke]	Click here
Turbocharger noise	Flow chart [Turbocharger noise]	Click here Click here

Tip:

*: Check "Fuel Cut Elapsed Time" in the Data List. If the elapsed time is over 0 sec, then the engine speed is high (the engine speed at which fuel cut occurs + 500 rpm or higher). In this situation, there is a possibility that a No. 1 valve rocker arm sub-assembly will become loose and malfunction, check that the No. 1 valve rocker arm sub-assemblies are properly installed.

Click here