Do-it-yourself throttle cleaning and training

Do-it-yourself cleaning and training of the throttle valve on Nissan Qashqai

And now about the throttle - I will not describe the whole process in detail, there are a lot of such detailed records on the Internet. I’ll tell you what I encountered, not similar on the Internet, and in short the process by which it will be clear how to do everything, there is nothing difficult.
So let's start, first you need tools, climbed into the garage, got everything you need to work.

Required tools:

What it takes to remove the throttle, the whole job took 30 minutes - very easy! 

1. Disconnect only one connector from the absorber purge valve! Haven't unplugged any more!

2. We loosen the pipe clamps with a screwdriver and disconnect the ventilation system hose from the block head.

3. Removes throttle 4 bolts. I thought the throttle would be clean - it wasn’t there, I always poured high-quality and expensive A95 gasoline, I think that the candles also need to be changed.
Photo from the side of the filter before cleaning.

Photo after cleaning.

Before cleaning, engine side.

After cleaning.

4. I cleaned all the dirt with a rag, wrapped it around a screwdriver in order to penetrate all the cracks, the main thing is not to scratch it, I bent the damper with my finger and cleaned between it, and just putting a rag I blew it by cleaning the carburetor, wipe it dry and collect it.

4. We assemble everything in the reverse order and start it up, I had everything as before cleaning, the speed is normal, the work is normal, at first there were a little high speed, then everything is fine!

5. For complacency, I decided to make the adaptation myself, the first 2 points didn’t work for a long time, because it should be written within 10 seconds of a beep, I had everything as usual for 2 seconds, it buzzed, after turning off the ignition and that’s it.

I completed the first two points according to the instructions and did not wait, ignored this beep and completed point number 3, after I did it with a stopwatch - it didn’t work, threw out the stopwatch and counted it myself - everything worked out. For a long time I could not find the flashing MI icon, then the CHEK flashed and I realized that it was MI.

After I did the whole 3 point, the machine began to raise the speed to 1000 for a couple of seconds and lowered it by 500, as I understand it, she wanted to understand where the limit and minimum were and set it in the middle. It all happened, after which I was surprised, the engine seemed to stall, it seemed to me, well, then I realized that he whispered, so quietly that my exhaust was loud, I couldn’t hear it at all! Cool, I always thought that I had normal idle speeds, it turns out they were high, although according to the tachometer everything remained at 800, even a little lower. I advise everyone to adapt!

Well, I went for a ride because the exhaust was not completed, I couldn’t fully feel the result, well, she began to go faster. The feeling of up to 30% of the pressed gas pedal is very manifest, it was very sensitive for me, well, now it has become smoother and clearer! for 65,000 km I never cleaned the throttle, injector, did not change the candles and did not touch the fuel pump.

How to train a damper on a Nissan Qashqai. Instruction
For manual transmission and CVT, the algorithm is the same!
Many owners of Nissan qashqai complain about the periodic appearance of "bouncing" speed while pressing the clutch pedal. In order to fix this problem, it is necessary to train the pedal, throttle and idle. This can be done according to the following scheme:
1. Pedal learning:
- Without pressing the gas pedal, turn on the ignition for 2 seconds;
- turn off the ignition and wait 10 seconds;
- without pressing the gas pedal, turn on the ignition for 2 seconds;
- turn off the ignition and wait 10 seconds.
PS Do not turn on the engine.

2. Teaching the throttle to supply air at idle speed:
- without pressing the gas pedal, turn on the ignition,

- turn off the ignition;

- if during the next 10 seconds the throttle drive “buzzes”, then everything is done correctly.

3. Before starting XX training, prepare:
- make sure that the battery voltage is at least 12.9V (at XX), the gearbox is fully warmed up, and the engine fluid temperature is 70 - 100 ° C,
- switch the gear selector to the "P" position ,
- turn off all electrical loads (headlights, air conditioning, radio, heated rear window),
- set the steering wheel straight.
If at least one of these conditions is not met, learning XX will not occur.

For further actions, you must have a stopwatch.

4. Teach XX:
- Teach the pedal.
- Train the throttle for air supply at idle speed.
- Start the engine and warm it up to normal operating temperature.
- Switch off the ignition for 10 seconds.
- Without pressing the gas pedal, turn on the ignition for 3 seconds.
- 5 times within the next 5 seconds, press and release the accelerator pedal.
- 7 seconds after the last press, press the gas pedal for another 20 seconds until the MI indicator lights up constantly.
- Within 3 seconds after the indicator stops flashing, fully release the pedal.
- Run the engine for 20 seconds at idle.

In order to check whether the learning was successful, it is necessary to turn on the engine and, while pressing the accelerator pedal, check the speed XX and the ignition timing. If the problem of "jumping" revolutions is solved, then the test is completed.

Source: http://www.drive2.ru/l/6899501/