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 (w/ stop and start system)	Click here
	Battery (w/o stop and start system)	Click here
	Starter relay	Click here
	Starter assembly (w/ stop and start system)	Click here
	Starter assembly (w/o stop and start system)	Click here
	Clutch start switch assembly	Click here
	Starter signal circuit	Click here
	Entry and start system (for start function)	Click here
	MMT System (for MMT models)	Click here
	Stop and Start System (w/ stop and start system)	Click here
No initial combustion (Does not start)	ECM power source circuit	Click here
	Immobiliser system (w/ entry and start system)	Click here
	Immobiliser system (w/o entry and start system)	Click here
	Crankshaft position sensor	Click here
	Ignition circuit (for Euro-OBD)	Click here
	Ignition system	Click here
	Fuel pump control circuit	Click here
	Fuel pump	Click here
	Fuel injector circuit	Click here
	Camshaft position sensor (for intake camshaft)	Click here
	Camshaft position sensor (for exhaust camshaft)	Click here
	Valve timing	Click here
	Starter signal circuit	Click here
	ECM	Click here
Engine cranks normally but difficult to start	Fuel pump control circuit	Click here
	Fuel pump	Click here
	Fuel injector circuit	Click here
	Fuel injector assembly	Click here
	ECM power source circuit	Click here
	Starter signal circuit	Click here
	Engine coolant temperature sensor	Click here
	Ignition system	Click here
	Ignition circuit (for Euro-OBD)	Click here
	Intake system	Click here
	Spark plug	Click here
	Throttle body with motor assembly	Click here
	Crankshaft position sensor	Click here
	Compression	Click here
	EGR valve assembly	Click here
Incomplete intermittent combustion occurs (Does not start)	Fuel pump control circuit	Click here
	Fuel pump	Click here
	Fuel line	-
	Ignition circuit (for Euro-OBD)	Click here
	Ignition system	Click here
	Intake system	Click here
	Fuel injector circuit	Click here
	Fuel injector assembly	Click here
	Spark plug	Click here
	ECM power source circuit	Click here
	Starter signal circuit	Click here
	Crankshaft position sensor	Click here
	Camshaft position sensor (for intake camshaft)	Click here
	Camshaft position sensor (for exhaust camshaft)	Click here
	Valve timing	Click here
High engine speed	Throttle body with motor assembly	Click here
	Intake system	Click here
	Air conditioning signal circuit (for automatic air conditioning system)	Click here
	Air conditioning signal circuit (except automatic air conditioning system)	Click here
	Engine coolant temperature sensor	Click here
	PCV valve	Click here
	PCV hose	Click here
	EGR valve assembly	Click here
Low engine speed (Poor idling)	Throttle body with motor assembly	Click here
	Air conditioning signal circuit (for automatic air conditioning system)	Click here
	Air conditioning signal circuit (except automatic air conditioning system)	Click here
	Fuel pump control circuit	Click here
	Fuel pump	Click here
	Intake system	Click here
	PCV valve	Click here
	PCV hose	Click here
	EGR valve assembly	Click here
Rough idle	Compression (engine mechanical)	Click here
	Spark plug	Click here
	Fuel injector circuit	Click here
	ECM power source circuit	Click here
	Fuel pump control circuit	Click here
	Fuel pump	Click here
	Fuel injector assembly	Click here
	Fuel line	-
	Throttle body with motor assembly	Click here
	Ignition circuit (for Euro-OBD)	Click here
	Ignition system	Click here
	Intake system	Click here
	Purge VSV	Click here
	PCV valve	Click here
	PCV hose	Click here
	Heated oxygen sensor (sensor 1)	Click here
	Heated oxygen sensor (sensor 2)	Click here
	Manifold absolute pressure sensor	Click here
	Air conditioning signal circuit (for automatic air conditioning system)	Click here
	Air conditioning signal circuit (except automatic air conditioning system)	Click here
	EGR valve assembly	Click here
	Knock control sensor	Click here
Hunting (Poor idling)	Throttle body with motor assembly	Click here
	Intake system	Click here
	PCV valve	Click here
	PCV hose	Click here
	Manifold absolute pressure sensor	Click here
	Heated oxygen sensor (sensor 1)	Click here
	EGR valve assembly	Click here
Hesitation/Poor acceleration (poor drivability)	Fuel pump control circuit	Click here
	Fuel line	-
	Fuel pump	Click here
	Fuel injector assembly	Click here
	Spark plug	Click here
	Ignition system	Click here
	Ignition circuit (for Euro-OBD)	Click here
	Fuel injector circuit	Click here
	ECM power source circuit	Click here
	Manifold absolute pressure sensor	Click here
	Throttle body with motor assembly	Click here
	Intake system	Click here
	Valve timing	Click here
	Compression	Click here
	EGR valve assembly	Click here
	Knock control sensor	Click here
Surging (Poor drivability)	Spark plug	Click here
	Fuel pump control circuit	Click here
	Fuel pump	Click here
	Fuel injector assembly	Click here
	Ignition system	Click here
	Ignition circuit (for Euro-OBD)	Click here
	Fuel injector circuit	Click here
	ECM power source circuit	Click here
	Manifold absolute pressure sensor	Click here
	Variable Valve Timing (VVT) system	Click here
	Compression	Click here
Engine stalls soon after starting	Fuel pump control circuit	Click here
	Fuel pump	Click here
	Fuel injector assembly	Click here
	Spark plug	Click here
	Ignition system	Click here
	Ignition circuit (for Euro-OBD)	Click here
	Fuel injector circuit	Click here
	ECM power source circuit	Click here
	Manifold absolute pressure sensor	Click here
	Variable Valve Timing (VVT) system	Click here
	Throttle body with motor assembly	Click here
	Intake system	Click here
	PCV valve	Click here
	PCV hose	Click here
	Compression	Click here
Engine stalls during air conditioning operation	Air conditioning signal circuit (for automatic air conditioning system)	Click here
	Air conditioning signal circuit (except automatic air conditioning system)	Click here
	ECM	Click here