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Home >> Toyota >> 2009 >> Corolla LE, 1.8 L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Control System (2AZ-FE) - SFI System Diagnostic Introduction, Precautions, Symptoms Table, Diagnostic Trouble Code Chart) >> SFI System >> Problem Symptoms Table
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Problem Symptoms Table

WARNING: This page is about a different variant/trim than selected.

HINT:

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

SFI SYSTEM SYMPTOM CHART

Symptom Suspected Area See
Engine does not crank (Does not start) Battery PROBLEM SYMPTOMS TABLE
Starter INSPECTION
Starter relay RELAY
Park/neutral position switch PARK/NEUTRAL POSITION SWITCH
Clutch pedal switch REMOVAL
Engine does not crank (Does not start) ECM power source circuit ECM POWER SOURCE CIRCUIT
Crankshaft position sensor REMOVAL
Camshaft position sensor REMOVAL
Ignition system ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel injector circuit FUEL INJECTOR CIRCUIT
Valve timing INSTALLATION
VC output circuit VC OUTPUT CIRCUIT
ECM REMOVAL
Engine cranks normally but difficult to start Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump INSPECTION
Fuel injector circuit FUEL INJECTOR CIRCUIT
ECM power source circuit ECM POWER SOURCE CIRCUIT
Engine coolant temperature sensor INSPECTION
Intake system INTAKE SYSTEM
Ignition system ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Throttle body INSPECTION
Compression ON-VEHICLE INSPECTION
Incomplete intermittent combustion occurs (Does not start) Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump INSPECTION
Ignition circuit SYSTEM DIAGRAM
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit FUEL INJECTOR CIRCUIT
ECM power source circuit ECM POWER SOURCE CIRCUIT
Crankshaft position sensor REMOVAL
Camshaft position sensor REMOVAL
Valve timing INSTALLATION
High engine idle speed Throttle body ON-VEHICLE INSPECTION
Intake system INTAKE SYSTEM
A/C signal circuit HOW TO PROCEED WITH TROUBLESHOOTING
ECM power source circuit ECM POWER SOURCE CIRCUIT
Engine coolant temperature sensor INSPECTION
PCV valve and hose REMOVAL
Low engine idle speed (Poor idling) Throttle body ON-VEHICLE INSPECTION
A/C signal circuit HOW TO PROCEED WITH TROUBLESHOOTING
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump INSPECTION
Intake system INTAKE SYSTEM
PCV valve and hose REMOVAL
Rough idling Compression ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Fuel injector circuit FUEL INJECTOR CIRCUIT
ECM power source circuit ECM POWER SOURCE CIRCUIT
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump INSPECTION
Throttle body ON-VEHICLE INSPECTION
Intake system INTAKE SYSTEM
PCV valve and hose REMOVAL
Air fuel ratio sensor REMOVAL
Heated oxygen sensor INSPECTION
Mass air flow meter MASS AIR FLOW METER
Idle hunting Throttle body ON-VEHICLE INSPECTION
Intake system INTAKE SYSTEM
PCV valve and hose REMOVAL
Air fuel ratio sensor REMOVAL
Mass air flow meter MASS AIR FLOW METER
Hesitation/Poor acceleration Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump INSPECTION
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit FUEL INJECTOR CIRCUIT
ECM power source circuit ECM POWER SOURCE CIRCUIT
Mass air flow meter MASS AIR FLOW METER
Throttle body ON-VEHICLE INSPECTION
Intake system INTAKE SYSTEM
Valve timing INSTALLATION
Compression ON-VEHICLE INSPECTION
Surging (Poor driveability) Spark plug ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit FUEL INJECTOR CIRCUIT
ECM power source circuit ECM POWER SOURCE CIRCUIT
Mass air flow meter MASS AIR FLOW METER
Variable valve timing (VVT) system DTC P0010 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1)
Compression ON-VEHICLE INSPECTION
Engine stalls soon after starting Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump INSPECTION
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit FUEL INJECTOR CIRCUIT
ECM power source circuit ECM POWER SOURCE CIRCUIT
Mass air flow meter MASS AIR FLOW METER
Variable valve timing (VVT) system DTC P0010 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1)
Throttle body ON-VEHICLE INSPECTION
Intake system INTAKE SYSTEM
PCV valve and hose REMOVAL
Compression ON-VEHICLE INSPECTION
Engine stalls only during A/C operation A/C signal circuit HOW TO PROCEED WITH TROUBLESHOOTING
ECM ECM
Unable/difficult to refuel Refueling valve (canister) REMOVAL