Symptom | Suspected Area |
Link |
Engine does not crank (Does not start) |
Hybrid control system |
|
VC output circuit (ECM 5 V output) |
|
No initial combustion (Does not start) |
ECM power source circuit |
|
VC output circuit (ECM 5 V output) |
|
Ignition system |
|
Fuel system |
|
Port fuel injector assembly |
|
Direct fuel injector assembly |
|
Fuel pump (for low pressure side) |
|
Crankshaft position sensor |
|
Intake system |
|
Valve timing |
|
EGR valve assembly |
|
Engine cranks normally but difficult to start |
ECM power source circuit |
|
Throttle body with motor assembly |
|
Fuel pump assembly (for high pressure side) |
|
Fuel pump (for low pressure side) |
|
Engine coolant temperature sensor |
|
Fuel system |
|
Ignition system |
|
Compression |
|
Port fuel injector assembly |
|
Direct fuel injector assembly |
|
Crankshaft position sensor |
|
Intake system |
|
Valve timing |
|
EGR valve assembly |
|
Incomplete intermittent combustion occurs (Does not start) |
Fuel system |
|
Fuel pump (for low pressure side) |
|
Ignition system |
|
Port fuel injector assembly |
|
Direct fuel injector assembly |
|
Crankshaft position sensor |
|
Intake system |
|
Valve timing |
|
High engine speed | Throttle body with motor assembly |
|
ECM power source circuit |
|
PCV system |
|
Low engine speed (Poor idle) |
Fuel system |
|
Throttle body with motor assembly |
|
Port fuel injector assembly |
|
Direct fuel injector assembly |
|
Fuel pump assembly (for high pressure side) |
|
PCV system |
|
Intake system |
|
Rough idle | Flow chart [Rough idling] |
|
Throttle body with motor assembly |
|
Port fuel injector assembly |
|
Direct fuel injector assembly |
|
Fuel pump assembly (for high pressure side) |
|
Ignition system |
|
Air fuel ratio sensor (sensor 1) |
|
Air fuel ratio sensor (sensor 2) |
|
Mass air flow meter sub-assembly |
|
Manifold absolute pressure sensor |
|
Compression |
|
Fuel system |
|
Intake system |
|
Valve timing |
|
EGR valve assembly |
|
Hunting (Poor idle) | Throttle body with motor assembly |
|
ECM power source circuit |
|
Fuel system |
|
Spark plug |
|
Intake system |
|
Drive start control |
|
Hesitation/Poor acceleration (Poor driveability) |
Port fuel injector assembly |
|
Direct fuel injector assembly |
|
Fuel system |
|
Fuel pump assembly (for high pressure side) |
|
Ignition system |
|
Intake system |
|
Valve timing |
|
Brake override system |
|
Drive start control |
|
Surging (Poor driveability) |
Fuel system |
|
Fuel pump (for low pressure side) |
|
Ignition system |
|
Port fuel injector assembly |
|
Direct fuel injector assembly |
|
Engine stalls soon after starting |
Fuel system |
|
Throttle body with motor assembly |
|
Crankshaft position sensor |
|
Ignition system |
|
Fuel pump assembly (for high pressure side) |
|
Intake system |
|
Valve timing |
|
EGR valve assembly |
|
MIL (Malfunction Indicator Lamp) malfunction |
MIL Circuit |
|
Meter/Gauge system |
|
Unable/difficult to refuel |
Fuel system (canister, refueling valve, roll over valve, fuel tank, etc.) |
- |