- when replacing the electric throttle actuator or ECM;
- when the speed is x x. or the ignition timing is different from the norm
1. Preparation
Before performing the air supply training procedure at idle speed. Make sure the following conditions are met. If one of them is not observed even for a moment, the training procedure is canceled.
- battery voltage is more than 12.9 V (at idle speed);
- engine coolant temperature: 70-100°C;
- PNP switch in position «ON»;
- electrical load switch: in position «OFF» (air conditioning, headlights, rear window defroster).
On vehicles equipped with daytime running lights, set the headlight switch to position 1 to turn on only small lights
- steering wheel: in neutral position (corresponding to straight linear motion);
- speed of the car the car is standing;
- gearbox, warmed up.
On models with CVT and manual transmission:
Travel by car for 10 minutes.
2. Training of air supply at idle speed.
Note:
- It is recommended to keep accurate timekeeping using a watch.
- If there is a malfunction in the accelerator pedal position sensor circuit, switching to diagnostic mode is not possible.
1. Perform the accelerator pedal release position learning procedure. See above.
2. Perform the closed throttle learning procedure. See above.
3. Start the engine and warm it up to normal operating temperature.
4. Turn the ignition key to position «OFF» and wait at least 10 seconds.
5. Make sure that the accelerator pedal is fully released, turn the ignition key to «ON» and wait 3 seconds.
6. Repeat the following procedure quickly, five times within 5 seconds:
- Press the accelerator pedal fully.
- Release the accelerator pedal completely.
7. Wait 7 seconds, fully depress the accelerator pedal and hold it for approx. 20 seconds until the fault indicator «M1» will not stop flashing or stay lit.
8. Fully release the accelerator pedal within 3 seconds after the malfunction indicator lights up «M1».
9. Start the engine and let it run at speed x. X..
10. Wait 20 seconds.
Go to step 3
3. Check the idle speed. and ignition timing
Boost the engine two or three times and make sure that the idle speed is and the ignition timing is normal.
Are the test results normal?
Yes - End of check.
No - Go to step 4.
4. Identify the faulty component
Check the following
- Check if the throttle valve is completely closed.
- Check PCV valve operation
- Check for air leaks behind the throttle valve.
Are the test results normal?
Yes - Go to step 5.
No - Repair or replace the faulty component.
5. Identify the faulty component
The engine components and their installation condition are questionable. Check and correct deficiencies. If one of the following conditions occurs after starting the engine, eliminate the cause of the problem and perform the idle air learning procedure again from the beginning.
- the engine stalls;
- Unstable operation at idle speed.
End of check.