| Unable to start (Engine does not turn over) |
- Test the battery. (Refer to BATTERY
)
- Test the starter. (Refer to STARTER
)
- Inhibitor switch (A/T) or clutch start switch (M/T)
|
- |
| Unable to start (Incomplete combustion) |
- Test the battery. (Refer to BATTERY
)
- Check the fuel pressure (Refer to FUEL PRESSURE TEST (LOW PRESSURE SYSTEM)
)
- Check the ignition circuit. (Refer to IGNITION SYSTEM - 1.6L
article)
- Troubleshooting the immobilizer system. (Refer to IMMOBILIZER SYSTEM
article)
(In case of immobilizer lamp flashing) |
- DTC
- Low compression
- Intake air leaks
- Slipped or broken timing belt
- Contaminated fuel
|
| Difficult to start |
- Test the battery. (Refer to BATTERY
)
- Check the fuel pressure (Refer to FUEL PRESSURE TEST (LOW PRESSURE SYSTEM)
)
- Check the ECT sensor and circuit (Check DTC).
- Check the ignition circuit. (Refer to IGNITION SYSTEM - 1.6L
article)
|
- DTC
- Low compression
- Intake air leaks
- Contaminated fuel
- Weak ignition spark
|
| Poor idling (Rough, unstable or incorrect Idle) |
- Check the fuel pressure. (Refer to FUEL PRESSURE TEST (LOW PRESSURE SYSTEM)
)
- Check the Injector. (Refer to INJECTOR
)
- Check the long term fuel trim and short term fuel trim (Refer to CUSTOMER DATASTREAM)
- Check the idle speed control circuit (Check DTC)
- Inspect and test the Throttle Body
- Check the ECT sensor and circuit (Check DTC)
|
- DTC
- Low compression
- Intake air leaks
- Contaminated fuel
- Weak ignition spark
|
| Engine stall |
- Test the battery. (Refer to BATTERY
)
- Check the fuel pressure. (Refer to FUEL PRESSURE TEST (LOW PRESSURE SYSTEM)
)
- Check the idle speed control circuit (Check DTC).
- Check the ignition circuit. (Refer to IGNITION SYSTEM - 1.6L
article)
- Check the CKPS Circuit (Check DTC).
|
- DTC
- Intake air leaks
- Contaminated fuel
- Weak ignition spark
|
| Poor driving (Surge) |
- Check the fuel pressure. (Refer to FUEL PRESSURE TEST (LOW PRESSURE SYSTEM)
)
- Inspect and test Throttle Body.
- Check the ignition circuit. (Refer to IGNITION SYSTEM - 1.6L
article)
- Check the ECT Sensor and Circuit (Check DTC).
- Test the exhaust system for a possible restriction. (Refer to EXHAUST MANIFOLD
)
- Check the long term fuel trim and short term fuel trim (Refer to CUSTOMER DATASTREAM)
|
- DTC
- Low compression
- Intake air leaks
- Contaminated fuel
- Weak ignition spark
|
| Knocking |
- Check the fuel pressure. (Refer to FUEL PRESSURE TEST (LOW PRESSURE SYSTEM)
)
- Inspect the engine coolant. (Refer to COOLANT
)
- Inspect the radiator and the electric cooling fan. (Refer to RADIATOR
)
- Check the spark plugs. (Refer to IGNITION SYSTEM - 1.6L
article)
|
|
| Poor fuel economy |
- Check customer's driving habits
- A/C on full time or the defroster mode on?
- Are tires at correct pressure?
- Is excessively heavy load being carried?
- Is acceleration too much, too often?
- Check the fuel pressure. (Refer to FUEL PRESSURE TEST (LOW PRESSURE SYSTEM)
)
- Check the injector. (Refer to INJECTOR
)
- Test the exhaust system for a possible restriction.
- Check the ECT sensor and circuit.
|
- DTC
- Low compression
- Intake air leaks
- Contaminated fuel
- Weak ignition spark
|
| Hard to refuel (Overflow during refueling) |
- Inspect the fuel filler hose/pipe
- Pinched, kinked or blocked?
- Filler hose is torn
- Inspect the fuel tank vapor vent hose between the EVAP. canister and air filter.
- Check the EVAP. canister.
|
- Malfunctioning gas station filling nozzle (If this problem occurs at a specific gas station during refueling)
|