Elements of the injection system
Injection system diagram of the 1.4L engine (B3)
Verification condition: The air filter must be installed; all hoses and air intake system lines are connected. All power consumers are switched off.
1. Warm up the engine. The engine temperature is at least +80°C.
2. Check the ignition timing.
Caution! Connect the test device only when the ignition is off.
3. Connect the tachometer according to the manufacturer's instructions.
4. Start the engine and let it idle.
5. Let the engine run for 2 minutes at 2500 rpm.
6. Leave the engine idling and check the idle speed.
| Engine | Idle speed |
| B3 | 850±50/min⁻¹ |
| B6 (DOHC) | 1025±25/min⁻¹ |
| B6 (DOHC) | 900±50/min⁻¹ |
1 - Automatic transmission: Idle speed + 100 rpm.
Caution! The radiator fan should not turn on during the test. If the fan turns on, wait until it turns off again.
7. If the idle speed does not correspond to the required value, adjust it using the throttle valve adjusting screw.
8. Turn off the test devices when the engine is not running and the ignition is off.