Toyota Fortuner. Sfi System Problem Symptoms Table

Sfi System -- Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. 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.

SFI system
Symptom	Suspected area	See page
Engine does not crank (engine does not start)	1. Start signal circuit	Toyota Fortuner RM000000TA001BX.html
	2. Starter	Toyota Fortuner RM0000013XJ00KX.html
	3. Starter relay	Toyota Fortuner RM0000013XM00DX.html
No initial combustion (engine does not start)	1. ECM power source circuit	Toyota Fortuner RM000000WZ000TX.html
	2. Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
	3. ECM	Toyota Fortuner RM000000UZ3019X.html
No complete combustion	Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
Engine cranks normally but difficult to start	1. Starter signal circuit	Toyota Fortuner RM000000TA001BX.html
	2. Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
	3. Compression	Toyota Fortuner RM000000YME003X_01_0003.html
Difficult to start with cold engine	1. Starter signal circuit	Toyota Fortuner RM000000TA001BX.html
Difficult to start with cold engine	2. Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
Difficult to start with hot engine	1. Starter signal circuit	Toyota Fortuner RM000000TA001BX.html
Difficult to start with hot engine	2. Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
High engine idling speed (poor idling)	1. A/C signal circuit (compressor unit)	-
High engine idling speed (poor idling)	2. ECM power source circuit	Toyota Fortuner RM000000WZ000TX.html
Low engine idling speed (poor idling)	1. A/C signal circuit (compressor unit)	-
Low engine idling speed (poor idling)	2. Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
Rough idling (poor idling)	1. Compression	Toyota Fortuner RM000000YME003X_01_0003.html
Rough idling (poor idling)	2. Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
Hunting (poor idling)	1. ECM power source circuit	Toyota Fortuner RM000000WZ000TX.html
Hunting (poor idling)	2. Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
Hesitation / Poor acceleration (poor driveability)	1. Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
Hesitation / Poor acceleration (poor driveability)	2. A/T faulty	-
Surging (poor driveability)	Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
Engine stalls soon after starting	Fuel pump control circuit	Toyota Fortuner RM000000WYZ00RX.html
Engine stalls soon after A/C operation	1. A/C signal circuit (compressor unit)	-
Engine stalls soon after A/C operation	2. ECM	Toyota Fortuner RM000000UZ3019X.html
MIL is not illuminated	MIL circuit	Toyota Fortuner RM000000WZ100XX.html