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

PROBLEM SYMPTOMS TABLE

Symptom	Suspected Area	See
Engine does not crank (Does not start)	1. Battery	ON-VEHICLE INSPECTION
	2. Starter	INSPECTION
	3. Starter relay	ON-VEHICLE INSPECTION
	4. Park/neutral position switch	INSPECTION
	5. Immobiliser system	HOW TO PROCEED WITH TROUBLESHOOTING
No initial combustion (Does not start)	1. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	2. Crankshaft position sensor	CRANKSHAFT POSITION SENSOR
	3. Camshaft position sensor	CAMSHAFT POSITION SENSOR
	4. Ignition system	ON-VEHICLE INSPECTION
	5. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	6. ECM	TERMINALS OF ECM
	7. VC output circuit	VC OUTPUT CIRCUIT
Engine cranks normally but difficult to start	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
Engine cranks normally but difficult to start	2. Compression	ON-VEHICLE INSPECTION
Difficult to start with cold engine	1. Ignition system	ON-VEHICLE INSPECTION
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	4. Injector	INSPECTION
Difficult to start with warm engine	1. Injector	INSPECTION
	2. Ignition system	ON-VEHICLE INSPECTION
	3. Spark plug	ON-VEHICLE INSPECTION
	4. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
High engine idle speed	1. Electronic throttle control system	DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
	2. A/C signal circuit	-
	3. ECM power source circuit	ECM POWER SOURCE CIRCUIT
Low engine idle speed (Poor idling)	1. Electronic throttle control system	DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
	2. A/C signal circuit	-
	3. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	4. Air induction system	ON-VEHICLE INSPECTION
	5. PCV hose	ON-VEHICLE INSPECTION
Rough idling	1. Compression	ON-VEHICLE INSPECTION
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Injector	INSPECTION
	4. Ignition system	ON-VEHICLE INSPECTION
	5. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	6. Electronic throttle control system	DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
	7. Air induction system	ON-VEHICLE INSPECTION
	8. PCV hose	ON-VEHICLE INSPECTION
	9. Mass air flow meter	MASS AIR FLOW METER
Idle hunting	1. Electronic throttle control system	DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
	2. Air induction system	ON-VEHICLE INSPECTION
	3. ECM power source circuit	ECM POWER SOURCE CIRCUIT
Hesitation/Poor acceleration	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Ignition system	ON-VEHICLE INSPECTION
	4. Injector	INSPECTION
	5. Mass air flow meter	MASS AIR FLOW METER
	6. Electronic throttle control system	DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
	7. Air induction system	ON-VEHICLE INSPECTION
	8. Compression	ON-VEHICLE INSPECTION
Surging (Poor drive ability)	1. Spark plug	ON-VEHICLE INSPECTION
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Ignition system	ON-VEHICLE INSPECTION
	4. Injector	INSPECTION
	5. Mass air flow meter	MASS AIR FLOW METER
	6. Variable valve timing system	DTC P0011 CAMSHAFT POSITION "A" -TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1); DTC P0012 CAMSHAFT POSITION "A" - TIMING OVER-RETARDED (BANK 1)
	7. Compression	ON-VEHICLE INSPECTION
Engine stalls soon after starting	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Ignition system	ON-VEHICLE INSPECTION
	4. Injector	INSPECTION
	5. Variable valve timing system	DTC P0011 CAMSHAFT POSITION "A" -TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1); DTC P0012 CAMSHAFT POSITION "A" - TIMING OVER-RETARDED (BANK 1)
	6. Electronic throttle control system	DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
	7. Air induction system	ON-VEHICLE INSPECTION
	8. PCV hose	ON-VEHICLE INSPECTION
	9. Compression	ON-VEHICLE INSPECTION
Engine stalls only during A/C operation	1. A/C signal circuit	-
Engine stalls only during A/C operation	2. ECM	TERMINALS OF ECM
Unable/difficult to refuel	1. Refueling valve (canister)	-