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
PROBLEM SYMPTOMS CHARTSymptom Suspected Area See Engine does not crank (Does not start) Engine immobilizer system (w/ Smart Key System) HOW TO PROCEED WITH TROUBLESHOOTING Engine immobilizer system (w/o Smart Key System) HOW TO PROCEED WITH TROUBLESHOOTING ECM power source circuit ECM POWER SOURCE CIRCUIT Starter signal circuit STARTER SIGNAL CIRCUIT Smart key system (for entry function) HOW TO PROCEED WITH TROUBLESHOOTING Starter assembly INSPECTION No initial combustion (Does not start) ECM power source circuit ECM POWER SOURCE CIRCUIT VC output circuit (ECM 5 V output) VC OUTPUT CIRCUIT Crankshaft position sensor CRANKSHAFT POSITION SENSOR Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT Ignition system IGNITION SYSTEM Fuel injector circuit FUEL INJECTOR CIRCUIT Valve timing REASSEMBLY Engine cranks normally but difficult to start Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT Fuel suction with pump and gage tube assembly INSPECTION Engine coolant temperature sensor ENGINE COOLANT TEMPERATURE SENSOR Ignition system IGNITION SYSTEM Fuel injector assembly INSPECTION Compression DRIVE BELT Fuel injector circuit FUEL INJECTOR CIRCUIT Intake system ON-VEHICLE INSPECTION Throttle with motor body assembly THROTTLE BODY Incomplete intermittent combustion occurs (Does not start) Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT Fuel suction with pump and gage tube assembly INSPECTION Fuel line - Ignition system IGNITION SYSTEM Fuel injector assembly INSPECTION Crankshaft position sensor CRANKSHAFT POSITION SENSOR Valve timing INSTALLATION High engine speed (Poor idle) Air conditioning signal circuit (for automatic air conditioning system) HOW TO PROCEED WITH TROUBLESHOOTING Air conditioning signal circuit (for manual air conditioning system) HOW TO PROCEED WITH TROUBLESHOOTING Throttle with motor body assembly THROTTLE BODY Engine coolant temperature sensor ENGINE COOLANT TEMPERATURE SENSOR PCV hose CANISTER PCV valve REMOVAL ACIS control circuit ACIS CONTROL CIRCUIT Low engine speed (Poor idle) Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT Throttle with motor body assembly THROTTLE BODY Intake system ON-VEHICLE INSPECTION ACIS control circuit ACIS CONTROL CIRCUIT PCV hose CANISTER PCV valve REMOVAL Engine stalls on deceleration Idle speed (refer to "low engine speed") DRIVE BELT Rough idle Compression DRIVE BELT Air fuel ratio sensor AIR FUEL RATIO SENSOR Heated oxygen sensor HEATED OXYGEN SENSOR Mass air flow meter sub-assembly MASS AIR FLOW METER Ignition system IGNITION SYSTEM Air conditioning signal circuit (for automatic air conditioning system) HOW TO PROCEED WITH TROUBLESHOOTING Air conditioning signal circuit (for manual air conditioning system) HOW TO PROCEED WITH TROUBLESHOOTING Fuel line (blocked) - Valve timing INSTALLATION Fuel suction with pump and gage tube assembly INSPECTION Intake system ON-VEHICLE INSPECTION ACIS control circuit ACIS CONTROL CIRCUIT PCV hose CANISTER PCV valve REMOVAL Hunting (Poor idle) PCV hose CANISTER PCV valve REMOVAL Mass air flow meter sub-assembly MASS AIR FLOW METER Air fuel ratio sensor AIR FUEL RATIO SENSOR ACIS control circuit ACIS CONTROL CIRCUIT Engine stalls during air conditioning operation Air conditioning signal circuit (for automatic air conditioning system) HOW TO PROCEED WITH TROUBLESHOOTING Air conditioning signal circuit (for manual air conditioning system) HOW TO PROCEED WITH TROUBLESHOOTING ECM ECM Hesitation/Poor acceleration (Poor driveability) Fuel line - Fuel suction with pump and gage tube assembly INSPECTION Valve timing INSTALLATION Mass air flow meter sub-assembly MASS AIR FLOW METER Throttle with motor body assembly THROTTLE BODY Knock control sensor KNOCK SENSOR Air intake control circuit AIR INTAKE CONTROL CIRCUIT Surging (Poor driveability) Fuel line - Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT Fuel suction with pump and gage tube assembly INSPECTION Ignition system IGNITION SYSTEM Fuel injector assembly INSPECTION Engine stalls soon after starting Mass air flow meter sub-assembly MASS AIR FLOW METER Intake system ON-VEHICLE INSPECTION Fuel line - Unable/difficult to refuel Refueling valve (canister) REMOVAL Engine vibrates frequently when idling (Active control engine mount system) Active control engine mount circuit ACTIVE CONTROL ENGINE MOUNT SYSTEM