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Problem Symptoms Table

HINT:

Use PROBLEM SYMPTOMS TABLE  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 Reference
Engine does not crank (Does not start) Battery ON-VEHICLE INSPECTION
Starter for standard INSPECTION
Starter for cold area INSPECTION
Cranking holding function circuit Cranking Holding Function Circuit 
Starter relay ON-VEHICLE INSPECTION
Park/neutral position switch INSPECTION
Clutch start switch ON-VEHICLE INSPECTION
Immobilizer System ENGINE IMMOBILIZER SYSTEM
No initial combustion (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 
ECM TERMINALS OF ECM 
VC output circuit VC OUTPUT CIRCUIT 
Engine cranks normally but difficult to start Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
Compression ON-VEHICLE INSPECTION
Difficult to start with cold engine Ignition system ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
Injector INSPECTION
Difficult to start with warm engine Injector INSPECTION
Ignition system ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
High engine idle speed Electronic throttle control system DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT MALFUNCTION; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" Voltage Correlation 
A/C signal circuit -
ECM power source circuit ECM POWER SOURCE CIRCUIT 
Low engine idle speed (Poor idling) Electronic throttle control system DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT MALFUNCTION; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" Voltage Correlation 
A/C signal circuit -
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
Air induction system ON-VEHICLE INSPECTION
PCV hose -
Rough idling Compression ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Injector INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
Electronic throttle control system DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT MALFUNCTION; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" Voltage Correlation 
Air induction system ON-VEHICLE INSPECTION
PCV hose -
Mass air flow meter ON-VEHICLE INSPECTION 
Idle hunting Electronic throttle control system DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT MALFUNCTION; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" Voltage Correlation 
Air induction system ON-VEHICLE INSPECTION
ECM power source circuit ECM POWER SOURCE CIRCUIT 
Hesitation/Poor acceleration Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Injector INSPECTION
Mass air flow meter ON-VEHICLE INSPECTION 
Electronic throttle control system DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT MALFUNCTION; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" Voltage Correlation 
Air induction system ON-VEHICLE INSPECTION
Compression ON-VEHICLE INSPECTION
Surging (Poor driveability) Spark plug ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
Ignition system ON-VEHICLE INSPECTION
Injector INSPECTION
Mass air flow meter ON-VEHICLE INSPECTION 
Variable valve timing 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 
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Injector INSPECTION
Variable valve timing system DTC P0010 CAMSHAFT POSITION "A" Actuator Circuit (Bank 1) 
Electronic throttle control system DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT MALFUNCTION; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT; THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" Voltage Correlation 
Air induction system ON-VEHICLE INSPECTION
PCV hose -
Compression ON-VEHICLE INSPECTION
Engine stalls only during A/C operation A/C signal circuit -
ECM TERMINALS OF ECM 
Unable/difficult to refuel Refueling valve (canister) -