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List of contents of this article:

• 1. Mercedes-Benz M112 Engine IgnitionSystem detection skills
• 2,Binance login Inspection and disposal of engine burning oil
• 3, What are the electronically controlled engine detections?
• 4. "Check engine" is displayed on the Corolla dashboard. What does the word "check engine" mean

Mercedes-Benz M112 engine ignition system detection skills

1. Regular maintenance and inspection of the engine. ( III) Eliminate the special smell generated by the engine. During the use of the vehicle, if you find a pungent smell or burning smell in the engine compartment, you should stop immediately and check whether the engine area isIf the line is softened or charred, the charred or short-circuited line should be repaired in time to avoid greater safety accidents.

2. Ignition system fault detection method 1 (1) If it is found that the ammeter pointer is discharged in the range of 3-5a, and the crankshaft does not return to the "0" position, it means that there is an iron or capacitor breakdown or the contact between the ignition coil and the active contact of the circuit breaker is not open.

3. Check with a fault diagnostic instrument. Preheat the engine until the water temperature is normal, keep the idle speed stable, insert the instrument plug into the wiring harness detection port, and read data flow, rotation speed, temperature, ignition advance angle and other parameters, which is the best method at present. Check with a timing gun. First, whitewash the upper stop mark on the flywheel for easy observation.

4. Generally speaking, the first thing to detect is the ignition system of the engine, which is also the simplest detection work.In the early ignition system, you can easily remove the ignition coil and then use an electric spark detector to detect whether the electric spark is normal.

Inspection and disposal of engine burning oil

1. Drive for a while to check the machine Whether there is a shortage of oil, and whether the exhaust pipe is still smoking blue smoke.Measure the cylinder pressure, and the cylinder pressure is normal: that should be the burning oil caused by the aging and damage of the valve oil seal, and replace the valve oil seal. It is recommended to replace all oil seals.

2. Too much oil: If the oil pressure is too high, part of the oil will be pressed into the cylinder, resulting in oil burning. The solution to the oil burning of the car engine: repair the engine, clean up the carbon in the engine, and replace the damaged parts. If the situation is serious, the engine needs to be overhauled.

3. First, check the reasons for the accessories related to burning engine oil and eliminate the problems of the relevant accessories. Through the first step to eliminate the problem of relevant accessories, it is determined that it is the oil burning problem caused by the piston ring jam.

4. Handling method; The owner should replace the valve oil seal of the vehicle in time to ensure the seal of the valve.

What are the electronically controlled engine detections?

1. Listen (use your ears or with the help of a dry opener, stethoscope, etc. to listen to whether there is an air leakage sound, whether there is a strange sound in the engine, whether there is an irregular "click" sound from the fuel injector, etc.) to quickly find out some relatively obvious faults.

2. Oil pressure sensor: monitor whether the oil pressure is normal for engine operation. Crankshaft position sensor: detects the crankshaft and engine speed, and provides it to the ECU as a reference signal to determine the ignition timing and working order.

3. That is, the signal given by the sensor to the computer board. Common faults of the electronic control ignition system of automobile engine are: no high-voltage current, high-voltage current is not strong enough, and the ignition time is wrong, resulting in poor operation or even inability to start the engine.

4. Take the analysis of the tempering fault of an electronically controlled engine as an example. The electronically controlled engine ECU diagnosed 9 causes of the failure during the engine tempering process. The parts that need to be further detected include water temperature sensor, throttle sensor, vacuum sensor, fuel pump, oil pipe, oil injection. Device, ECU.

What does the word "Check Engine" appear on the Corolla dashboard mean?

The word "Check Engine" usually means that the engine control system of the vehicle has detected some reason. Obstacles or abnormalities need to be checked and repaired. This may be due to a problem with a sensor or actuator of the engine, or a failure of a part of the engine.

Generally, it is caused by the failure of the electronic control system, sensors and lines of the engine, and then the display checks the engine. Go to 4s and use a special computer diagnostic instrument to read the fault code, and you will probably know what the problem is, and then check and repair it according to the fault code.

Hello, it should be an engine failure. It is recommended to go to 4S for inspection and maintenance. I wish you a pleasant drive.

The reasons why the Corolla engine fault light is on are: poor combustion condition, poor fuel quality, unclean engine cylinder with carbon accumulation, line failure, and lamp failure. The following is the way to deal with the engine fault light: fuel quality problem. Improve the quality of fuel.

There is a failure in the emission control system. Reduce the pressure on the accelerator pedal until the indicator light stops flashing.Do not drive at a speed of more than 70 km/h, avoid sudden acceleration or sudden braking, avoid driving on steep hillsides, and avoid loading or pulling unnecessary loads.

[Pacific Automobile Network] The engine of the vehicle has failed. At this time, the vehicle cannot drive. The reason is that the engine is not running normally. After the engine fault light is on, the engine will have a serious lack of power. It is necessary to check the throttle valve, intake duct, spark plug, fuel injector, etc. of the vehicle. Square.