SFI SYSTEM > PROBLEM SYMPTOMS TABLE

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HINT:
  1. 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.
  2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.


SFI System 
Symptom
Suspected Area
See page
Engine does not crank (Does not start)
Battery
-
Starter (for 0.8 kW type)
Click here
Starter (for 1.0 kW type)
Click here
Cranking holding function circuit (w/ Entry and Start System)
Click here
Starter signal circuit
Click here
Starter relay
Click here
Clutch start switch assembly
Click here
Park/neutral position switch assembly
Click here
No initial combustion (Does not start)
ECM power source circuit
Click here
VC output circuit
Click here
Crankshaft position sensor
Click here
Fuel pump control circuit
Click here
Ignition system
Click here
Fuel injector circuit
Click here
Valve timing
Click here
Camshaft position sensor
Click here
ECM
Click here
Immobiliser system (w/ Entry and Start System)
Click here
Immobiliser system (w/o Entry and Start System)
Click here
Engine cranks normally but difficult to start
Fuel pump control circuit
Click here
Fuel pump
Click here
EGR
Click here
Engine coolant temperature sensor
Click here
Ignition system
Click here
Compression
Click here
Fuel injector assembly
Click here
Fuel injector circuit
Click here
Air induction system
Click here
Throttle body assembly
Click here
Incomplete intermittent combustion occurs (Does not start)
Fuel pump control circuit
Click here
Fuel pump
Click here
Ignition circuit
Click here
Ignition system
Click here
Fuel injector assembly
Click here
Crankshaft position sensor
Click here
Valve timing
Click here
Camshaft position sensor
Click here
High engine speed (Poor idle)
A/C signal circuit
-
Throttle body assembly
Click here
Engine coolant temperature sensor
Click here
PCV valve and hose
Click here
ECM power source circuit
Click here
Low engine speed (Poor idle)
Fuel pump control circuit
Click here
Fuel pump
Click here
Throttle body assembly
Click here
Air induction system
Click here
PCV valve and hose
Click here
Engine stalls on deceleration
Idle speed (refer to "Low engine speed" symptom)
-
Rough idle
Compression
Click here
Air fuel ratio sensor
Click here
Heated oxygen sensor (Sensor 1)
Click here
Manifold absolute pressure sensor
Click here
Spark plug
Click here
Ignition system
Click here
A/C signal circuit
-
Fuel pump control circuit
Click here
Fuel pump
Click here
Air induction system
Click here
PCV valve and hose
Click here
Active control engine mount system
Click here
Hunting (Poor idling)
Throttle body assembly
Click here
PCV valve and hose
Click here
Manifold absolute pressure sensor
Click here
Air fuel ratio sensor
Click here
Engine stalls during A/C operation
A/C signal circuit (Compressor circuit)
-
ECM
Click here
Hesitation/Poor acceleration (Poor driveability)
Fuel pump control circuit
Click here
Fuel pump
Click here
Valve timing
Click here
Manifold absolute pressure sensor
Click here
Throttle body assembly
Click here
Spark plug
Click here
Ignition system
Click here
Fuel injector assembly
Click here
Air induction system
Click here
Compression
Click here
Surging (Poor driveability)
Fuel pump control circuit
Click here
Fuel pump
Click here
Ignition system
Click here
Fuel injector assembly
Click here
Spark plug
Click here
Manifold absolute pressure sensor
Click here
Variable valve timing system
Click here
Compression
Click here
Engine stalls soon after starting
Manifold absolute pressure sensor
Click here
Air induction system
Click here
Fuel pump control circuit
Click here
Fuel pump
Click here
Spark plug
Click here
Ignition system
Click here
Fuel injector assembly
Click here
Variable valve timing system
Click here
Throttle body assembly
Click here
PCV valve and hose
Click here
Compression
Click here