08 Will the Fox exhaust pipe be lit if it is faulty?

When the engine is working, the high-pressure combustible mixture and combustible gas in the combustion chamber will more or less leak into the crankcase through the gap between the piston group and the cylinder, causing blow-by. The composition of blow-by gas is unburned fuel gas, water vapor and exhaust gas, which will dilute the engine oil, reduce the performance of the engine oil, and accelerate the oxidation and deterioration of the engine oil. Water vapor condenses in the oil, which will form sludge and block the oil path; Acid gases in exhaust gases are mixed into the lubrication system, which can lead to corrosion and accelerated wear of engine parts; Blow-by gas can also make the pressure of the crankcase too high and destroy the seal of the crankcase, causing oil leakage and loss.

Crankcase ventilation is necessary to prevent crankcase pressure from being too high, extend the life of the oil, reduce component wear and corrosion, and prevent engine oil leakage. In addition, in order to meet increasingly stringent emission requirements and improve economy, crankcase ventilation systems must also be designed during the design of automotive engines.

The installation of crankcase ventilation in the engine can solve or alleviate these problems.

When there is a problem with the ventilation duct, the pressure will be too high, causing the engine fault light to alarm.

Hello, a broken or clogged exhaust pipe will cause the engine mixture to be too thin or too thick, which will make the engine work poorly and the fault light will be lit.

Engine oxygen bai

There are many cases where the sensor is abnormal and causes the fault light alarm to start the DU machine. The oxygen sensor version of the DAO machine is generally placed near the right air intake manifold, due to intense driving or some collision situations, the oxygen sensor will be displaced or damaged, which will cause the sensor to be abnormal and cause a fault light alarm.

Plugged injectors and carbon build-up in the intake valves can also trigger engine failure light alarms. Because there will be impurities in gasoline, they will accumulate at the fuel injector, which will affect the fuel injection of the fuel injector, especially in the cylinder direct injection engine, which will directly lead to engine shutdown and other conditions. The impurities will produce carbon deposits after combustion, and the accumulation of carbon on the throttle to a certain extent will affect the normal opening and closing of the throttle, affect the normal work of the engine, and cause the alarm light to light up.

Another common scenario is sensor failure. After walking on a muddy road, the engine fault light suddenly turned on, but there was nothing unusual about the car itself. When I drove the car to the 4S shop for inspection, it was found that the left front wheel sensor was faulty.

As a result, the problem was solved by slightly cleaning it with water and then installing it. An abnormal sensor does not necessarily mean that the vehicle is faulty, but there will certainly be an anomaly that needs attention.

The reason why the engine emission is so the fault light is on:

1.Poor gasoline quality will lead to insufficient combustion of mixed dao agas in the cylinder.

It is also easy to produce carbon deposits.

2.The presence of carbon deposits in the inlet duct and piston tip will lead to poor atomization, which will lead to insufficient combustion and the pollution lamp will be on.

3.When the cold car starts, especially when the weather temperature drops sharply, due to the temperature correction problem of the computer, the pollution light will be on when it is started, but as long as the temperature drops to a certain level, it will be relatively stable after the temperature does not fluctuate.

4.If the engine mileage is too long, the spark plug operating characteristics will be weakened, and the polluting lamp will be lit.

5.Excessive carbon deposition and difficult ignition will lead to the reverse breakdown of the ignition coil, resulting in ignition coil failure, resulting in poor ignition, resulting in incomplete combustion, resulting in the pollution lamp on, this phenomenon has a distinctive feature is that when the ignition coil fails, the engine is always serious shaking. If it is not always severe jitter, the ignition coil can be basically ruled out.

6.The age of the vehicle is too old, and the aging of machinery leads to poor engine working conditions, resulting in poor ignition, resulting in pollution lights.

Maybe it's gasoline.

The quality of the product is defective, resulting in the impurities of the gasoline filter white net too du

Many, the filter is blocked. You can turn the oil on the rest of the endurance of 20 kilometers, go to add a tank of No. 95 or No. 98 oil, 4 gears 120 yards to pull a high-speed. Get off the highway and stop, then step on the neutral gear to 5000 rpm, stay for 10 seconds and then release, and press 5-6 times in a row.

Flameout. After 10 minutes, screw the key and let the computer self-test for 15 seconds before starting. At this time, see if the engine fault light is still on.

If it's still bright, it's time to go to 4S to check it.

Just a few months after I bought it, the Ford Focus hatchback ran more than 4,000 kilometers, and the obstacle lights were on.

Go to the 4S store and use the computer to see the fault code! I know it's the problem, and I don't know what the problem is! The car can't be seen either! It is recommended to check it out at the 4S store!

Lighting up means that there may be an internal fault in the electronic throttle system, and the fault may affect the normal use of the vehicle. The electronic adjustment of engine power (electronic throttle), usually the leakage or blockage of the intake system, excessive carbon deposition on the throttle, substandard fuel selection, and valve jamming will cause the fault light to light up. After running the fuel tank for a period of time, the idle shake will disappear when the two divisions have idling shake fuel additives and the fuel filler tank will disappear.

References.

1) The start-up system fails.

The motive cannot be duly turned or turned too.

zhi slowness causes the engine to fail to start :dao

1) The battery storage is insufficient, and the electric return electrode pile clamp.

A: Loose or electrode pile is seriously oxidized;

2) The main fuse of the circuit is broken;

3) Ignition switch failure;

4) Starter failure;

5) The starting line is broken or the line connector is in poor contact.

Ford Focus.

The solution to the engine failure light is as follows:

1. Exhaust emissions are not up to standard: such as poor fuel, three-way catalytic converter.

Failure, excessive carbon deposition in the intake pipe, clogged fuel injector, oxygen sensor.

Failure, occasional lack of fire in the engine, etc., will lead to the engine failure light to be lit, among which the engine failure light is the most caused by poor oil quality; The three-way catalytic converter can be replaced;

2. The fault light is lit due to poor operation of the engine system, such as the throttle pedal sensor, throttle position sensor, air flow meter, crankshaft position sensor, etc., or the fault of the line contact will cause the engine fault light to be lit; Repair and replace according to the relevant maintenance methods;

3. Some vehicle gearboxes.

System failures are also indicated by engine fault lights, such as internal failure of the transmission, slippage, high temperature, etc. It is necessary to go to the repair shop for maintenance inspection.

Exhaust emissions are not up to standard

For example, poor fuel, failure of three-way catalytic converter, excessive carbon accumulation in the intake pipe, blockage of noisy fuel injectors, failure of oxygen sensors, and occasional lack of fire in the engine will basically affect the lighting of the engine failure problem lamp.

Among them, the oil quality is not good, which affects the engine failure problem, and the light is the most on; The three-way catalytic converter can be replaced;

It is possible that the Fox engine fault light is on and it is a false fault. A fault is reported**, but it works fine. There may also be a real fault, such as a failure of the inlet pressure sensor, which needs to be found and solved in time.

Generally speaking, the reasons why the engine failure light is on are:

1. The combustion state is not good;

2. Engine knocking;

3. The fuel quality is not good;

4. The inside of the engine cylinder is not clean and there is carbon deposit;

5. The computer cannot obtain the engine data.

Summary. The first thing to do to fix the Focus engine fault light is to check the engine system. Check whether the engine has failed, and if there is a fault, repair it immediately; Check that the engine oil is sufficient, and if it is insufficient, refuel; Check the engine for oil leaks; Check for fuel system failures and deal with them as soon as possible; Check the oil filter and replace it if it is clogged; Check whether the engine cooling system has failed, and if so, deal with it in time; Inspect the engine spark plug and replace it if damaged; Check the air filter and clean or replace it if there is any dirt; Check the engine exhaust system for malfunctions and fix them as soon as possible.

If the engine fault light is still on after the above checks, you should go to the 4S shop for diagnosis and a more in-depth examination.

The first thing to do to fix the Focus engine fault light is to check the engine system. Check whether the engine has a fault, and if there is a fault, it will be repaired immediately; Check whether the engine oil is sufficient, and refuel if it is not sufficient; Check the engine for oil leaks; Check for fuel system failures and deal with them as soon as possible; Check the oil filter and replace it if it is clogged; Check whether the engine cooling system has failed, and if so, deal with it in time; Inspect the engine spark plug and replace it if damaged; Check the air filter and clean or replace it if there is any dirt; Check the engine exhaust system for malfunctions and fix them as soon as possible. If the engine is still lit after the above inspection, you should go to the 4S store for diagnosis and more in-depth examination.

The engine fault light is on. Under normal circumstances, if there is no particularly noticeable fault, cautious driving at low speeds is fine. There may be some minor glitches, or there may not be glitches (false glitches).

However, if the engine has obvious faults, such as severe noise, severe shaking and vibration, engine smoke, etc. , it is necessary not to drive on the road, it is better to contact the repair shop and wait for rescue.

The reasons why the engine fault light of the car is always on are: the poor quality of gasoline will affect the insufficient combustion of the mixture in the cylinder, affect the lighting of the pollution lamp, and easily cause carbon deposits. Carbon deposits on the air intake and piston top can affect poor atomization, resulting in inadequate combustion and affecting engine failure lights.

When the cold car is started, especially when the weather temperature drops sharply, the engine fault light will always be on due to the temperature correction problem of the computer at the time of starting, but as long as the temperature drops to the necessary temperature and there is no fluctuation, it will be stable year-on-year. If the drive stroke of the engine is too long, the operating characteristics of the spark plug are weakened, and the engine fault light will remain on. The ignition difficulty caused by excessive carbon deposition will affect the reverse breakdown of the ignition coil, and the failure of the ignition coil will lead to poor ignition, and incomplete combustion will cause pollution of the light.

A striking feature of this phenomenon is that the engine always shakes violently when the ignition coil fails. If it is not violently shaking all the time, the ignition coil can basically be ruled out.

The new generation of the Focus hatchback features a sporty design with sporty and sleek styling that is instantly appealing and more beautiful than its class, while the large front grille adds a sporty touch to the necessary extent. A hatchback refers to a car that includes an engine compartment, a cockpit, and two parts, while a sedan has an engine compartment, a cockpit, and a luggage compartment, but it is not a hatchback that directly removes the luggage compartment. In fact, the hatchback combines the luggage compartment and the cockpit.