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

Engine Hybrid System. Corolla. Zre142 Aze141

2Zr-Fe Engine Control. Corolla. Zre142 Aze141

Sfi System -- Problem Symptoms Table

HINT:

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.

SFI System
Symptom	Suspected Area	See page
Engine does not crank (Does not start)	Battery	COROLLA_ZRE142 RM000001AR909SX.html
	VC output circuit	COROLLA_ZRE142 RM000001D6V0N0X.html
	Cranking holding function circuit	COROLLA_ZRE142 RM000001FLC087X.html
	Starter	COROLLA_ZRE142 RM0000034TA013X.html
No initial combustion (Does not start)	Immobiliser system (w/o smart key system)	COROLLA_ZRE142 RM00000292I041X.html
	Immobiliser system (w/ smart key system)	COROLLA_ZRE142 RM0000027KK057X.html
	ECM power source circuit	COROLLA_ZRE142 RM0000027690AZX.html
	Camshaft position sensor (for intake camshaft)	COROLLA_ZRE142 RM000000WBZ0KEX.html
	Camshaft position sensor (for exhaust camshaft)	COROLLA_ZRE142 RM000000YTB0G4X.html
	VC output circuit	COROLLA_ZRE142 RM000001D6V0N0X.html
	Crankshaft position sensor	COROLLA_ZRE142 RM000001DBN027X.html
	Fuel pump control circuit	COROLLA_ZRE142 RM0000027680A7X.html
	Ignition system	COROLLA_ZRE142 RM000001QVP061X.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FVX.html
	Valve timing	COROLLA_ZRE142 RM000002XA30BAX.html
	Cranking holding function circuit	COROLLA_ZRE142 RM000001FLC087X.html
	ECM	COROLLA_ZRE142 RM000001CN0030X.html
	Valve rocker arm sub-assembly*	COROLLA_ZRE142 RM000002XA8027X.html
Engine cranks normally but difficult to start	Fuel pump control circuit	COROLLA_ZRE142 RM0000027680A7X.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV036X.html
	Engine coolant temperature sensor	COROLLA_ZRE142 RM000001DBF02MX.html
	Ignition system	COROLLA_ZRE142 RM000001QVP061X.html
	Spark plug	COROLLA_ZRE142 RM000001QVP061X_01_0003.html
	Injector	COROLLA_ZRE142 RM000001EDQ04ZX.html
	Compression	COROLLA_ZRE142 RM000002ZLZ050X_01_0010.html
	Intake system	COROLLA_ZRE142 RM000003410016X.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FVX.html
	Throttle body	COROLLA_ZRE142 RM000001CZ8021X.html
	ECM power source circuit	COROLLA_ZRE142 RM0000027690AZX.html
	Valve rocker arm sub-assembly*	COROLLA_ZRE142 RM000002XA8027X.html
Incomplete intermittent combustion occurs (Does not start)	Fuel pump control circuit	COROLLA_ZRE142 RM0000027680A7X.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV036X.html
	Ignition circuit	COROLLA_ZRE142 RM000000XH40QYX.html
	Ignition system	COROLLA_ZRE142 RM000001QVP061X.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FVX.html
	ECM power source circuit	COROLLA_ZRE142 RM0000027690AZX.html
	Crankshaft position sensor	COROLLA_ZRE142 RM000001DBN027X.html
	Camshaft position sensor (for intake camshaft)	COROLLA_ZRE142 RM000000WBZ0KEX.html
	Camshaft position sensor (for exhaust camshaft)	COROLLA_ZRE142 RM000000YTB0G4X.html
	Valve timing	COROLLA_ZRE142 RM000002XA30BAX.html
High engine idle speed	A/C signal circuit (for manual air conditioning system)	COROLLA_ZRE142 RM000001M2W05PX.html
	A/C signal circuit (for automatic air conditioning system)	COROLLA_ZRE142 RM000001M2W05OX.html
	Throttle body	COROLLA_ZRE142 RM000001CZ8021X.html
	Intake system	COROLLA_ZRE142 RM000003410016X.html
	Engine coolant temperature sensor	COROLLA_ZRE142 RM000001DBF02MX.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012OO05EX_01_0003.html
	ECM power source circuit	COROLLA_ZRE142 RM0000027690AZX.html
Low engine idle speed (Poor idle)	Fuel pump control circuit	COROLLA_ZRE142 RM0000027680A7X.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV036X.html
	Throttle body	COROLLA_ZRE142 RM000001CZ8021X.html
	A/C signal circuit (for manual air conditioning system)	COROLLA_ZRE142 RM000001M2W05PX.html
	A/C signal circuit (for automatic air conditioning system)	COROLLA_ZRE142 RM000001M2W05OX.html
	Intake system	COROLLA_ZRE142 RM000003410016X.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012OO05EX_01_0003.html
Rough idle	Compression	COROLLA_ZRE142 RM000002ZLZ050X_01_0010.html
	Air fuel ratio sensor	COROLLA_ZRE142 RM000001CK8049X.html
	Heated oxygen sensor	COROLLA_ZRE142 RM000001CK804AX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001D0M022X.html
	Ignition system	COROLLA_ZRE142 RM000001QVP061X.html
	Spark plug	COROLLA_ZRE142 RM000001QVP061X_01_0003.html
	Intake system	COROLLA_ZRE142 RM000003410016X.html
	Throttle body	COROLLA_ZRE142 RM000001CZ8021X.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012OO05EX_01_0003.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FVX.html
	Fuel pump control circuit	COROLLA_ZRE142 RM0000027680A7X.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV036X.html
	Valve rocker arm sub-assembly*	COROLLA_ZRE142 RM000002XA8027X.html
Idle hunting	Throttle body	COROLLA_ZRE142 RM000001CZ8021X.html
	Intake system	COROLLA_ZRE142 RM000003410016X.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012OO05EX_01_0003.html
	Air fuel ratio sensor	COROLLA_ZRE142 RM000001CK8049X.html
	Mass air flow meter	COROLLA_ZRE142 RM000001D0M022X.html
Hesitation/Poor acceleration	Fuel pump control circuit	COROLLA_ZRE142 RM0000027680A7X.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV036X.html
	Spark plug	COROLLA_ZRE142 RM000001QVP061X_01_0003.html
	Ignition system	COROLLA_ZRE142 RM000001QVP061X.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FVX.html
	ECM power source circuit	COROLLA_ZRE142 RM0000027690AZX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001D0M022X.html
	Throttle body	COROLLA_ZRE142 RM000001CZ8021X.html
	Intake system	COROLLA_ZRE142 RM000003410016X.html
	Valve timing	COROLLA_ZRE142 RM000002XA30BAX.html
	Compression	COROLLA_ZRE142 RM000002ZLZ050X_01_0010.html
	Brake override system	COROLLA_ZRE142 RM000004G8F0E3X.html
	Valve rocker arm sub-assembly*	COROLLA_ZRE142 RM000002XA8027X.html
Surging (Poor driveability)	Spark plug	COROLLA_ZRE142 RM000001QVP061X_01_0003.html
	Fuel pump control circuit	COROLLA_ZRE142 RM0000027680A7X.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV036X.html
	Ignition system	COROLLA_ZRE142 RM000001QVP061X.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FVX.html
	ECM power source circuit	COROLLA_ZRE142 RM0000027690AZX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001D0M022X.html
	Variable valve timing (VVT) system	COROLLA_ZRE142 RM000000PDU0PRX.html
	Compression	COROLLA_ZRE142 RM000002ZLZ050X_01_0010.html
	Valve rocker arm sub-assembly*	COROLLA_ZRE142 RM000002XA8027X.html
Engine stalls soon after starting	Fuel pump control circuit	COROLLA_ZRE142 RM0000027680A7X.html
	Fuel pump	COROLLA_ZRE142 RM0000022XV036X.html
	Spark plug	COROLLA_ZRE142 RM000001QVP061X_01_0003.html
	Ignition system	COROLLA_ZRE142 RM000001QVP061X.html
	Fuel injector circuit	COROLLA_ZRE142 RM000000ZRM0FVX.html
	ECM power source circuit	COROLLA_ZRE142 RM0000027690AZX.html
	Mass air flow meter	COROLLA_ZRE142 RM000001D0M022X.html
	Variable valve timing (VVT) system	COROLLA_ZRE142 RM000000PDU0PRX.html
	Throttle body	COROLLA_ZRE142 RM000001CZ8021X.html
	Intake system	COROLLA_ZRE142 RM000003410016X.html
	PCV valve and hose	COROLLA_ZRE142 RM0000012OO05EX_01_0003.html
	Compression	COROLLA_ZRE142 RM000002ZLZ050X_01_0010.html
	Valve rocker arm sub-assembly*	COROLLA_ZRE142 RM000002XA8027X.html
Engine stalls only during A/C operation	A/C signal circuit (for manual air conditioning system)	COROLLA_ZRE142 RM000001M2W05PX.html
	A/C signal circuit (for automatic air conditioning system)	COROLLA_ZRE142 RM000001M2W05OX.html
	ECM	COROLLA_ZRE142 RM000001CN0030X.html
Unable/difficult to refuel	Fuel system (canister, refueling valve, roll-over valve, fuel tank, etc.)	-

HINT:

*: Check the "Fuel Cut Elps Time" in the Data List.

If the elapsed time is over 0 sec, then the engine speed is high (More than the engine speed at which fuel cut occurs + 500 rpm).

When this has happened, there is the possibility that the valve rocker arm will become loose and malfunction, so check that the valve rocker arm is properly attached (COROLLA_ZRE142 RM000002XA8027X.html).