SFI SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Engine does not crank (Does not start) | Immobiliser system | |
| Starter (for 1.4 kW) | ||
| Starter (for 2.0 kW) | ||
| No initial combustion (Does not start) | ECM power source circuit | |
| Fuel pump control circuit | ||
| Fuel injector circuit | ||
| VC output circuit | ||
| ECM | ||
| Engine cranks normally but difficult to start | Fuel pump control circuit | |
| Fuel injector circuit | ||
| Compression | ||
| Difficult to start with cold engine | Starter signal circuit | |
| Fuel pump control circuit | ||
| Fuel injector circuit | ||
| Spark plug | ||
| Ignition system | ||
| Fuel injector assembly | ||
| Difficult to start with warm engine | Starter signal circuit | |
| Fuel pump control circuit | ||
| Fuel injector circuit | ||
| Spark plug | ||
| Ignition system | ||
| Fuel injector assembly | ||
| High engine idling speed (Poor idling) | A/C signal circuit (compressor circuit) (for Automatic Air) | |
| A/C signal circuit (compressor circuit) (for Manual Air) | ||
| ECM power source circuit | ||
| Electronic throttle control system | ||
| Air induction system | ||
| PCV hose | ||
| Low engine idling speed (Poor idling) | A/C signal circuit (compressor circuit) (for Automatic Air) | |
| A/C signal circuit (compressor circuit) (for Manual Air) | ||
| Fuel pump control circuit | ||
| Electronic throttle control system | ||
| Air induction system | ||
| PCV hose | ||
| Rough idling (Poor idling) | Compression | |
| Fuel pump control circuit | ||
| Fuel injector circuit | ||
| Electronic throttle control system | ||
| Air induction system | ||
| PCV hose | ||
| Mass air flow meter | ||
| Hunting (Poor idling) | ECM power source circuit | |
| Fuel pump control circuit | ||
| Spark plug | ||
| Ignition system | ||
| Fuel injector circuit | ||
| Fuel injector assembly | ||
| Electronic throttle control system | ||
| Air induction system | ||
| PCV hose | ||
| Hesitation/Poor acceleration (Poor driveability) | Fuel pump control circuit | |
| A/T faulty | ||
| Spark plug | ||
| Ignition system | ||
| Fuel injector circuit | ||
| Fuel injector assembly | ||
| Mass air flow meter | ||
| Brake override system | ||
| Surging (Poor driveability) | Fuel pump control circuit | |
| Spark plug | ||
| Ignition system | ||
| Fuel injector circuit | ||
| Fuel injector assembly | ||
| Mass air flow meter | ||
| Engine stalls soon after starting | Fuel pump control circuit | |
| Spark plug | ||
| Ignition system | ||
| Fuel injector circuit | ||
| Fuel injector assembly | ||
| Engine stalls during A/C operation | A/C signal circuit (compressor circuit) (for Automatic Air) | |
| A/C signal circuit (compressor circuit) (for Manual Air) | ||
| ECM |