Problem symptoms table

SFI system
Problem symptoms table

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
Engine does not crank (Does not start) Engine immobiliser system
Hybrid control system
VC output circuit
Entry and start system (for start function)
No initial combustion (Does not start) ECM power source circuit
VC output circuit
Crankshaft position sensor
Fuel pump control circuit
Ignition system
Fuel injector circuit
Valve timing
Engine cranks normally but difficult to start Fuel pump control circuit
Fuel pump
Engine coolant temperature sensor
Ignition system
Fuel injector assembly
Compression
Fuel injector circuit
Intake system
Throttle body assembly
EGR valve assembly
ECM power source circuit
Incomplete intermittent combustion occurs (Does not start) Fuel pump control circuit
Fuel pump
Fuel line
Ignition system
Fuel injector assembly
EGR valve assembly
Crankshaft position sensor
Valve timing
High engine idle speed Throttle body assembly
Intake system
Engine coolant temperature sensor
PCV system
ECM power source circuit
Low engine idle speed (Poor idle) Fuel pump control circuit
Throttle body assembly
Intake system
PCV system
Engine stalls on deceleration Idle speed (refer to "Low engine speed")
EGR valve assembly
Rough idle Compression
Air fuel ratio sensor
Heated oxygen sensor
Mass air flow meter sub-assembly
Manifold absolute pressure sensor
Ignition system
Fuel line
Valve timing
Fuel pump
Intake system
PCV system
EGR valve assembly
Hunting PCV system
Air fuel ratio sensor
Mass air flow meter sub-assembly
Hesitation/Poor acceleration Fuel line
Fuel pump
Valve timing
Mass air flow meter sub-assembly
Throttle body assembly
Knock control sensor
Brake override system
Surging (Poor driveability) Fuel line
Fuel pump control circuit
Fuel pump
Ignition system
Fuel injector assembly
Engine stalls soon after starting Mass air flow meter sub-assembly
Intake system
Manifold absolute pressure sensor
Fuel line
Valve timing
EGR valve assembly
Engine coolant temperature indicator light illuminate or blinks Engine coolant leaks
Engine water pump assembly
Exhaust heat recirculation system (w/ exhaust heat recirculation system)