What is the fault of the 08 Land Rover that can t be lowered at idle?

It can be caused by excessive carbon build-up in the throttle, intake tract, intake valve, and combustion chamber. Because of the excessive carbon deposition and dirt in the intake tract, the cross-sectional area of the air passage changes, so that the control unit can not accurately control the idle air intake, resulting in the mixture being too thick or too thin, so that the combustion is abnormal or the engine shakes or even cannot start after starting. At the same time, it is also necessary to check the working status of the fuel injector and whether the pulse width of the fuel injection volume is up to standard.

An endoscope is also used to check whether there is too much carbon deposits in the intake valves and combustion chambers. Check the throttle idle motor, check the spark plug, check the coil and cylinder wire, and check whether there is a lack of cylinder. The problem that the speed continues to rise after stepping on the clutch may be due to the fact that the weather is too cool or the throttle has too much carbon deposit, resulting in some wrinkles in the throttle shaft, resulting in the throttle not being able to return in time after the throttle is retracted; There is also the fault phenomenon caused by the throttle cable being too wrinkled or having burrs and skin friction.

There's nothing wrong with each other.

Idling can not be reduced, considering that Land Rover is a joint venture high-end car, domestic fuel is the characteristic, engine manufacturers are based on the mainstream fuel appearance, there is no research on ethanol fuel.

Many high-end luxury cars and new cars are facing shaking, in fact, it is not a problem with the engine, as long as you use detergent to clean it once, you don't have to worry when you encounter such a situation, add 1 to 2 Siyoupu fuel additives according to the size of the fuel tank, and run one or two tanks of fuel, and the jitter before the D gear is gone.

Land Rover found that the four low-speed idling was unstable, causing it to stall, what is the reason?

There are many reasons for this, such as:

The throttle is too dirty. As a result, the air intake is insufficient, the engine idle speed is unstable, the engine stalls, the valve position sensor is faulty, and the information is sent incorrectly, resulting in insufficient near-term volume, unstable standby speed, and flameout.

The engine was not working well, and the ignition coil of the spark plug failed, resulting in unstable idle stalling.

The fuel system is faulty, the fuel filter is too dirty and clogged, the fuel pump is faulty, the speed is not enough, the oil pressure is insufficient, and the idle stall is caused.

The above faults will lead to the discovery of four low-speed idle instability, leading to the cause of fire.

Hello, you can check from the following aspects:

1. The spark plug works poorly;

2. Air leakage of vacuum tube;

3. High-voltage line leakage;

4. The PCV valve is blocked;

5. Throttle position sensor failure;

6. Idle stepping motor failure;

7. The idle control valve fails;

8. The throttle opening is abnormal;

9. Air leakage in the air intake system.