why does the throttle valve get dirty?
Clogged air filter
Consequences: Dust from the air filter enters the throttle valve, mixes with engine oil vapor and settles to form a dense layer of dirt.
Low-quality engine oil or late replacement
Consequences: Motor oil of low quality or that has lost its properties due to prolonged use burns when the engine is running, vapors enter the throttle valve and mix with dust to form a dense layer of dirt.
Teaching the accelerator pedal to the released position
The operation required to monitor the output signal of the accelerator pedal position sensor!
This must be performed whenever the accelerator pedal position sensor or ECM cable has been disconnected. Make sure the accelerator pedal is fully released.
- Turn the ignition key to the “ON” position and wait at least 2 seconds.
- Turn off the ignition and wait at least 10 seconds.
- Turn the ignition key to the “ON” position and wait at least 2 seconds.
- Turn off the ignition and wait at least 10 seconds. If it doesn’t work, then before repeating it is necessary for the car to drive for at least 10 minutes. Also, ideally, you need to train the damper in the closed and open positions, as this has been discussed more than once on forums on the Internet.
Source: etlib.ru
how to tell if the throttle valve is clogged
Engine stalls at idle and low speeds
Reasons: Due to carbon deposits, the air flow passing through the throttle valve is reduced, which affects the formation of the air-fuel mixture and engine operation.
Solution: Cleaning the throttle valve, adapting the throttle valve.
The car responds slowly to pressing the gas pedal
Reasons: Due to carbon deposits, the throttle valve can stick, allowing less air to pass through, reducing the moment the throttle valve opens to the desired position.
Solution: Cleaning the throttle valve, adapting the throttle valve.
Increased fuel consumption
Reasons: The ECU adjusts the air-fuel mixture when there is a lack of air, which increases the vehicle's fuel consumption.
Solution: Cleaning the throttle valve, adapting the throttle valve.
Unstable engine operation, speed fluctuates
Causes: If the throttle valve is heavily contaminated, the car may stall while driving at high speed, after engaging neutral gear, or there may be a surge in speed.
Solution: Cleaning the throttle valve, adapting the throttle valve.
Cleaning the remote control
If the cause of unstable engine operation is a dirty damper, you should move on to cleaning it. To do this, you can contact a reliable service station. Among the large number of workshops, you can find one that specializes in specific brands (Audi, Volkswagen, Toyota, Mercedes and others). However, the owner can do all the work himself, since much experience and skills are not required in this matter.
At service stations, the cost of the procedure may depend on a number of factors:
- complexity of the work - for some cars, access to the remote control will require the dismantling of many parts;
- service station service level - as a rule, the larger the organization, the more expensive it is;
- location - in large cities you can leave more money than in the periphery.
Cleaning the throttle valve is a simple procedure, after which you usually need to think about how to adapt the throttle valve on a Nissan or any other car.
Any car owner can perform this procedure independently. No special knowledge or skills are required here. All you need to get to the damper are tools and rags (preferably soft ones). You also cannot do without a special product - the carburetor cleaner “Carb Cleaner” is mainly used.
nuances of cleaning the throttle valve
Cleaning the throttle valve without removing it
Cleaning the throttle valve without removing it will be ineffective, due to the fact that deposits will be removed only from the plug itself, carbon deposits and dirt on the inside, walls and air channels will remain intact. Also, carbon particles can get into the engine, which will not be useful.
Cleaning force
When cleaning the throttle valve, do not use much effort; there is a chance of damaging the throttle valve or throttle position sensor.
Cleaning molybdenum-coated dampers
Some throttle valves use molybdenum. The molybdenum layer is easily removed along with carbon deposits, as a result of which the damper begins to work incorrectly, allowing excess air to pass through (which leads to an increase in speed).
Refusal to adapt throttle valve
Adjusting the throttle valve is an extremely important step and should not be ignored. The throttle valves need to be adjusted correctly, otherwise the idle speed will not be at the desired value.
Cost of cleaning the throttle body
The cost of cleaning the throttle body will depend on how difficult it is to reach; some cars are designed to require the removal of many parts.
The simplest way to carry out adaptation
Now the question of whether it is necessary to adapt the throttle valve after cleaning should definitely not arise if there were still doubts. The easiest way to carry out the operation is to simply reset the battery terminal. Just to begin with, it is worth warming up the engine well to operating temperature, for which you should take a short trip. Then, turning off the engine, disconnect the negative terminal of the battery and wait. Depending on the brand of car, the waiting time can be 10-30 seconds or 15-20 minutes.
During this period, all ECU parameters should return to the original (factory) settings. Next, all that remains is to connect the terminal and start the engine - the speed should return to normal.
Throttle valve cleaners
The range of products for cleaning throttle valves is quite diverse. Objectively, the rating of manufacturers of cleaning products consists of the opinions of the majority of experts, auto repairmen and consumer reviews, as follows:
- MOTUL P1 Carbu Clean - Effectively and quickly dissolves carbon deposits, deposits, varnishes, resins. MOTUL P1 Carbu Clean is suitable for cleaning both carburetors and throttle valves, allowing you to stabilize idle speed and improve engine performance. High product quality thanks to multi-level control and production in France.
- Hi-Gear. This cleaner contains lubricants and anti-corrosion components that do not adversely affect the sensitive elements of air supply systems. The advantage of this product is its quick action; the disadvantages include the fact that the cans sometimes found are of poor quality.
- Throttle valve cleaner “4720”, produced under the Johnsen brand, has a modern formula and convenient packaging. Disadvantages include a high level of toxicity.
- 3M 08867 universal cleaner for automotive parts, convenient container.
- Throttle valve cleaner "Mag 1414" helps get rid of soot and oil deposits.
- "Berryman 0117C B-12", under the Chemtool brand, is a modern product for cleaning parts and throttle valves, among others. Its advantages include the use of innovative technology that effectively dissolves contaminants.
- "JetSpray 800002231" by Gumout. This product has demonstrated the highest effectiveness based on numerous tests. Suitable for cleaning valves of power units, regardless of power and design features.
Adaptation using the example of some cars
Another method, which we will consider using the example of one well-known German brand, also involves adaptation without a computer. Here you should warm up the engine to a temperature of approximately 70-99°C. The battery voltage must be at least 12.9 Volts when the engine is not running. The action plan for how to adapt the throttle valve on a Volkswagen will be something like this:
- After warming up and turning off the engine, you should wait a short period (5-10 seconds).
- With the gas pedal released, turn on the ignition and wait 3 seconds.
- After 3 seconds, you need to press the accelerator pedal all the way 5 times and release it back. Act quickly, as you only have 5 seconds to do this.
- After the 5th exercise, you should wait a pause.
- After 7 seconds, press the pedal all the way again and hold it in this position until the “CHEK” indicator starts flashing (≈ 10 sec.), then it should remain on continuously (≈ 20 sec.).
- When the indicator lights up constantly, count to three and only then release the pedal.
- Start the engine (repeat if necessary), wait 20 seconds, then lightly accelerate (2000-3500). If the tachometer shows 700 rpm at XX (+- 50), it means that the adaptation was successful.
In this case, it is necessary to strictly adhere to the time intervals of each setting step. This is the only way the ECU training will go smoothly. But before that, it’s worth studying the adaptation features and the possibility of a manual procedure for your car. Perhaps only service station specialists can help.
Heading
The Golf throttle adaptation procedure is needed so that the engine control unit knows what position the gas pedal is in for a particular section of driving.
Based on this information, he can operate the machine successfully. This adjustment is needed when the engine is unstable at idle. When it doesn’t have enough power, and it feels like it’s about to stall, and similar problems appear. The resistive layer of the potentiometer necessarily wears out. Therefore, there is a need to adapt the Volkswagen throttle valve. The distance between the body and the throttle valve changes, as well as the air volume accordingly.
WHY tor motors?
Our company is a leader in unit repair (engines, transmissions, steering, turbocharging systems), we also repair, replace and clean throttle valves in Krasnodar.
We are so confident in the quality of our repairs that we offer a 6-month guarantee. We have a large warehouse of spare parts for repairing units of all types and modifications.
The masters of the TOR MOTORS service center in Krasnodar will perform high-quality cleaning of the throttle valve, taking into account the manufacturer’s plant regulations. Our service center has all the necessary equipment to service throttle valves. All work is carried out in an equipped unit workshop.
Element training
The Nissan Almera N16, Classic and G15 internal combustion engines are similar in their overall structure, so the process of adapting the throttle to the new driving mode is the same for all three models. This process will require a lot of patience and perseverance from the driver, since you need to check every second. Before starting the training procedures, it is important to perform a number of actions aimed at preparing the engine. Firstly, it is important to adhere to the engine temperature regime. To do this, you need to start the unit, warm it up and turn it off for 5–10 minutes. This allows you to bring the temperature to 70–90 degrees, necessary for successful training. It is also important to turn off the stove, the heated windows and mirrors, as well as the headlights (you can switch to the headlights).
XX learning or throttle adaptation
On engines 1.6 and 2.0 this process goes as follows:
- The battery charge must be at least 12.9 V.
- Warm transmission.
- Antifreeze temperature – at least 70 0 .
- The gear selector lever is in position “P”.
- All electricity consumers are turned off.
We teach the gas pedal to the “released” position - this test is necessary to determine the output signal of the throttle position sensor, and is performed after each ECM cable disconnection. To do this you need the following:
- Turn the ignition key to the “ON” position and pause for at least two seconds.
- Turn off the ignition and wait for ten seconds.
- We repeat these two operations again.
Initial conditions
Before starting operations, make sure that all the conditions listed below are met!!!
This process is canceled if any of the conditions are not met at the time of execution.
- The battery voltage is not lower than 12.9 at idle.
- Temperature from 70 to 99 degrees.
- Selector in P or N (automatic transmission).
- Electrical loads are turned off (air conditioning, headlights, heated rear window, cars with Eurolights - turn on the dimensions).
- The steering wheel is in the middle position - the wheels are straight.
- Before training, drive a car for 10 minutes.
- The radiator fan should not work.
- Vehicle speed: The vehicle is stationary.
- Gearbox: Warm up.
