Brand:
Toyota
Model Name:
4Runner GRN210 215 UZN210 215
Manual:
Repair Manual
Section:
1Gr-Fe Engine Control System
Title:
Sfi System
- HINT:
- When a malfunction is not confirmed by a DTC (Diagnostic Trouble Code) check and the cause of problem cannot be identified through a basic inspection, troubleshoot according to the priority order indicated in the table below.
| Symptom | Suspected area | See page |
| Engine does not crank (Does not start) | 1. Immobilizer system | Click here |
| 2. Starter (for Standard) | Click here | |
| 3. Starter (for Cold Area) | Click here | |
| 4. STARTER relay | Click here | |
| No initial combustion (Does not start) | 1. ECM power source circuit | Click here |
| 2. Fuel pump control circuit | Click here | |
| 3. ECM | Click here | |
| Engine cranks normally but difficult to start | 1. Fuel pump control circuit | Click here |
| 2. Compression | Click here | |
| Difficult to start with cold engine | 1. Starter signal circuit | Click here |
| 2. Fuel pump control circuit | Click here | |
| 3. Spark plug | Click here | |
| 4. Ignition system | Click here | |
| 5. Injector | Click here | |
| Difficult to start with warm engine | 1. Starter signal circuit | Click here |
| 2. Fuel pump control circuit | Click here | |
| 3. Spark plug | Click here | |
| 4. Ignition system | Click here | |
| 5. Injector | Click here | |
| High engine idling speed (Poor idling) | 1. A/C signal circuit (compressor circuit) | Click here |
| 2. ECM power source circuit | Click here | |
| 3. Electronic throttle control system | Click here | |
| 4. Air induction system | - | |
| 5. PCV hose | - | |
| Low engine idling speed (Poor idling) | 1. A/C signal circuit (compressor circuit) | Click here |
| 2. Fuel pump control circuit | Click here | |
| 3. Electronic throttle control system | Click here | |
| 4. Air induction system | - | |
| 5. PCV hose | - | |
| Rough idling (Poor idling) | 1. Compression | Click here |
| 2. Fuel pump control circuit | Click here | |
| 3. Electronic throttle control system | Click here | |
| 4. Air induction system | - | |
| 5. PCV hose | - | |
| Hunting (Poor idling) | 1. ECM power source circuit | Click here |
| 2. Fuel pump control circuit | Click here | |
| 3. Spark plug | Click here | |
| 4. Ignition system | Click here | |
| 5. Injector | Click here | |
| 6. Electronic throttle control system | Click here | |
| 7. Air induction system | - | |
| 8. PCV hose | - | |
| Hesitation/Poor acceleration (Poor driveability) | 1. Fuel pump control circuit | Click here |
| 2. A/T faulty (A750E/A750F) | Click here | |
| 3. Spark plug | Click here | |
| 4. Ignition system | Click here | |
| 5. Injector | Click here | |
| Surging (Poor driveability) | 1. Fuel pump control circuit | Click here |
| 2. Spark plug | Click here | |
| 3. Ignition system | Click here | |
| 4. Injector | Click here | |
| Engine stalls soon after starting | 1. Fuel pump control circuit | Click here |
| 2. Spark plug | Click here | |
| 3. Ignition system | Click here | |
| 4. Injector | Click here | |
| Engine stalls during A/C operation | 1. A/C signal circuit (Compressor circuit) | Click here |
| 2. ECM | Click here | |
| Unable/difficult to refuel | Refueling valve (canister) | - |