2Az-Fe Engine Control. Sfi System Problem Symptoms Table

Engine Hybrid System. Corolla. Zre142 Aze141

2Az-Fe Engine Control. Corolla. Zre142 Aze141

Sfi System -- Problem Symptoms Table

HINT:

Use the table below to help determine the cause of problem symptom. If multiple suspected areas 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.

SFI System
Symptom	Suspected Area	See page
Engine does not crank (Does not start)	Immobilizer system	COROLLA_ZRE142 RM00000292I041X.html
	Battery	COROLLA_ZRE142 RM000001AR909TX.html
	VC output circuit	COROLLA_ZRE142 RM000001D6V0N1X.html
	Starter signal circuit	COROLLA_ZRE142 RM000002XN20E7X.html
	Starter	COROLLA_ZRE142 RM000001ETI028X.html
No initial combustion (Does not start)	ECM power source circuit	COROLLA_ZRE142 RM000001F7102ZX.html
	Crankshaft position sensor	COROLLA_ZRE142 RM0000017V902CX.html
	Camshaft position sensor	COROLLA_ZRE142 RM0000017V5020X.html
	Ignition system	COROLLA_ZRE142 RM000003CXY00IX.html
	Fuel pump control circuit	COROLLA_ZRE142 RM000001DN704CX.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FWX.html
	Valve timing	COROLLA_ZRE142 RM000000PDU0PSX_09_0005.html
	VC output circuit	COROLLA_ZRE142 RM000001D6V0N1X.html
	Starter signal circuit	COROLLA_ZRE142 RM000002XN20E7X.html
	ECM	COROLLA_ZRE142 RM000002WT402ZX.html
Engine cranks normally but difficult to start	Fuel pump control circuit	COROLLA_ZRE142 RM000001DN704CX.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV035X.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FWX.html
	Engine coolant temperature sensor	COROLLA_ZRE142 RM0000017U703IX.html
	Intake system	COROLLA_ZRE142 RM00000341100ZX.html
	Ignition system	COROLLA_ZRE142 RM000003CXY00IX.html
	Spark plug	COROLLA_ZRE142 RM000003CXY00IX_01_0002.html
	Throttle body	COROLLA_ZRE142 RM0000017UB03FX.html
	Compression	COROLLA_ZRE142 RM000001R3C014X_01_0009.html
	ECM power source circuit	COROLLA_ZRE142 RM000001F7102ZX.html
Incomplete intermittent combustion occurs (Does not start)	Fuel pump control circuit	COROLLA_ZRE142 RM000001DN704CX.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV035X.html
	Ignition circuit	COROLLA_ZRE142 RM000003CXX00EX.html
	Ignition system	COROLLA_ZRE142 RM000003CXY00IX.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FWX.html
	ECM power source circuit	COROLLA_ZRE142 RM000001F7102ZX.html
	Crankshaft position sensor	COROLLA_ZRE142 RM0000017V902CX.html
	Camshaft position sensor	COROLLA_ZRE142 RM0000017V5020X.html
	Valve timing	COROLLA_ZRE142 RM000000PDU0PSX_09_0005.html
High engine idle speed	Throttle body	COROLLA_ZRE142 RM0000017UE03MX.html
	Intake system	COROLLA_ZRE142 RM00000341100ZX.html
	A/C signal circuit (for manual air conditioning system)	COROLLA_ZRE142 RM000000PM60A1X.html
	A/C signal circuit (for automatic air conditioning system)	COROLLA_ZRE142 RM000000PM60A0X.html
	ECM power source circuit	COROLLA_ZRE142 RM000001F7102ZX.html
	Engine coolant temperature sensor	COROLLA_ZRE142 RM0000017U703IX.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012O703ZX.html
Low engine idle speed (Poor idling)	Throttle body	COROLLA_ZRE142 RM0000017UE03MX.html
	A/C signal circuit (for manual air conditioning system)	COROLLA_ZRE142 RM000000PM60A1X.html
	A/C signal circuit (for automatic air conditioning system)	COROLLA_ZRE142 RM000000PM60A0X.html
	Fuel pump control circuit	COROLLA_ZRE142 RM000001DN704CX.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV035X.html
	Intake system	COROLLA_ZRE142 RM00000341100ZX.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012O703ZX.html
Rough idling	Compression	COROLLA_ZRE142 RM000001R3C014X_01_0009.html
	Ignition system	COROLLA_ZRE142 RM000003CXY00IX.html
	Spark plug	COROLLA_ZRE142 RM000003CXY00IX_01_0002.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FWX.html
	ECM power source circuit	COROLLA_ZRE142 RM000001F7102ZX.html
	Fuel pump control circuit	COROLLA_ZRE142 RM000001DN704CX.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV035X.html
	Throttle body	COROLLA_ZRE142 RM0000017UE03MX.html
	Intake system	COROLLA_ZRE142 RM00000341100ZX.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012O703ZX.html
	Air fuel ratio sensor	COROLLA_ZRE142 RM0000033D600IX.html
	Heated oxygen sensor	COROLLA_ZRE142 RM0000033D200QX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001RYE03TX.html
Idle hunting	Throttle body	COROLLA_ZRE142 RM0000017UE03MX.html
	Intake system	COROLLA_ZRE142 RM00000341100ZX.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012O703ZX.html
	Air fuel ratio sensor	COROLLA_ZRE142 RM0000033D600IX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001RYE03TX.html
Hesitation/Poor acceleration	Fuel pump control circuit	COROLLA_ZRE142 RM000001DN704CX.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV035X.html
	Spark plug	COROLLA_ZRE142 RM000003CXY00IX_01_0002.html
	Ignition system	COROLLA_ZRE142 RM000003CXY00IX.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FWX.html
	ECM power source circuit	COROLLA_ZRE142 RM000001F7102ZX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001RYE03TX.html
	Throttle body	COROLLA_ZRE142 RM0000017UE03MX.html
	Intake system	COROLLA_ZRE142 RM00000341100ZX.html
	Valve timing	COROLLA_ZRE142 RM000000PDU0PSX_09_0005.html
	Compression	COROLLA_ZRE142 RM000001R3C014X_01_0009.html
	Brake override system	COROLLA_ZRE142 RM000004G8F0E4X.html
Surging (Poor driveability)	Spark plug	COROLLA_ZRE142 RM000003CXY00IX_01_0002.html
	Fuel pump control circuit	COROLLA_ZRE142 RM000001DN704CX.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV035X.html
	Ignition system	COROLLA_ZRE142 RM000003CXY00IX.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FWX.html
	ECM power source circuit	COROLLA_ZRE142 RM000001F7102ZX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001RYE03TX.html
	Variable valve timing (VVT) system	COROLLA_ZRE142 RM000000PDU0PSX.html
	Compression	COROLLA_ZRE142 RM000001R3C014X_01_0009.html
Engine stalls soon after starting	Fuel pump control circuit	COROLLA_ZRE142 RM000001DN704CX.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV035X.html
	Spark plug	COROLLA_ZRE142 RM000003CXY00IX_01_0002.html
	Ignition system	COROLLA_ZRE142 RM000003CXY00IX.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FWX.html
	ECM power source circuit	COROLLA_ZRE142 RM000001F7102ZX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001RYE03TX.html
	Variable valve timing (VVT) system	COROLLA_ZRE142 RM000000PDU0PSX.html
	Throttle body	COROLLA_ZRE142 RM0000017UE03MX.html
	Intake system	COROLLA_ZRE142 RM00000341100ZX.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012O703ZX.html
	Compression	COROLLA_ZRE142 RM000001R3C014X_01_0009.html
Engine stalls only during A/C operation	A/C signal circuit (for manual air conditioning system)	COROLLA_ZRE142 RM000000PM60A1X.html
	A/C signal circuit (for automatic air conditioning system)	COROLLA_ZRE142 RM000000PM60A0X.html
	ECM	COROLLA_ZRE142 RM000002WT402ZX.html
Unable/difficult to refuel	Fuel system (canister, refueling valve, roll over valve, fuel tank, etc.)	-