How to solve the problem of Land Rover P007B 00?

Hello, now the car is used with electronically controlled engines, there are a lot of sensors to detect the working conditions of the engine, and then the signal is fed back to the computer, after the computer analysis and comparison, and then to control the fuel injection ignition and air intake, if there is a problem with the detection of each sensor of the engine, the computer will report the fault code, to remind the owner, the engine needs to be tested and repaired, so we have to find out the reasons for this failure, there are often the following reasons, for reference only: 1. The sensor is damaged, the contact is poor or the signal is interrupted; 2. Poor engine maintenance; 3. The quality of fuel and oil is not good; 4. The combustion of the mixture is insufficient; 5. Spark plug failure, ignition coil failure; 6. The fuel pump is faulty and the oil circuit is blocked; 7. The air conditioner filter is blocked.

The specific situation is analyzed as follows; 1. Sensor problems; The sensors mentioned here include water temperature, crankshaft position, air flow, intake air temperature, oxygen sensor, etc., when these sensors are damaged, poor contact or signal interruption, the ECU of the car can not accurately obtain the engine data, at this time it will cause the engine fault light to turn on. 2. Maintenance problems; Poor engine maintenance is the most common cause of engine failure to light up. We know that the vehicle has a certain maintenance cycle, if the owner does not maintain on time, coupled with bad driving habits, then it will increase the burden of engine operation, and finally can only remind you through the fault light to care about your car 3, oil quality problems; The oil quality here includes fuel and engine oil, we know that the fuel filled by the car is generally marked, and the engine oil is also semi-synthetic and fully synthetic, the manufacturer will generally recommend the owner to use which grade of fuel, which type of engine oil, if the owner does not add as required, it will cause wear and tear of the engine in the long run, and the fault light is not to blame.

Poor combustion of the mixture; The failure of the spark plug, ignition coil, fuel pump, and oil circuit blockage of the engine will cause poor combustion of the engine mixture. Poor combustion of the mixture is caused by the problem of engine carbon deposition or knocking, and these will eventually be detected by the engine's oxygen sensor and reported to the ECU, which will naturally turn on the fault light to warn of the intake air intake problem; When the engine burns, it needs to take intake, the air filter element is very important in this process, if the air filter element of the car is not clean, it will affect the air intake of the car if it is not cleaned regularly, and it will be blocked for a long time, and if it is serious, it will cause the engine failure light to turn on. pressurization issues; Intake booster lines and turbochargers can also cause engine failure lights to illuminate.

The most common of these is turbocharger damage, while the vehicle can also experience symptoms such as oil leakage, high oil consumption, loss of power, metal noise, and blue or black smoke from the exhaust pipe. 7. Exhaust problems; Rear oxygen sensor, three-way catalytic converter, exhaust camshaft and bearing. The most common of these is a failure of the three-way catalytic converter that causes the engine failure light to illuminate.

The use of leaded gasoline, the use of leaded or silicone lubricant additives, the bump of the three-way catalytic converter, and the failure of the engine oil supply system are some of the factors that can easily cause the failure of the three-way catalytic converter.

Detailed meaning: The function of the crankshaft is to turn the up and down motion of the piston into a rotary motion.

The role of the camshaft is to control the opening and closing of the valves. The electronic control unit (ECU) continuously monitors the timing position of the variable camshaft and checks the relative position between the camshaft and the crankshaft.

If the relative position is misaligned by more than 1 tooth, the fault code will appear.

Causes of failure include failure of the camshaft position sensor itself or its circuit, failure of the crankshaft position sensor itself or its circuit, failure of the engine speed sensor, contamination of the oil, jamming of the variable camshaft solenoid valve, etc.

Land Rover P0016 Fault Solution: First of all, check whether the timing belt is broken or skipping teeth, then check whether the solenoid valve that adjusts the valve timing is damaged, and also check whether the oil pressure is normal. This is caused by a problem with the engine's valve timing, and it is necessary to check the above three items during maintenance, and then realign the timing.

P0016 Fault Code, applicable to all car manufacturers, means crankshaft position convexity of axle position correlation (1st row, sensor A). Background: The function of the crankshaft is to turn the up and down motion of the piston into a rotary motion.

The role of the camshaft is to control the opening and closing of the valves. The electronic control unit (ECU) continuously monitors the timing position of the variable camshaft and checks the relative position between the camshaft and the crankshaft. If the relative position is misaligned by more than 1 tooth, the fault code will appear.

The causes of failure include the failure of the camshaft position sensor itself or its circuit, the failure of the crankshaft position sensor itself or its circuit, the failure of the speed sensor of the shiny sliding motor, the contamination of the oil, the jamming of the variable camshaft solenoid valve, etc.

Timing is very important for the engine, and the general engine is designed with double overhead camshafts, which have one camshaft to control the intake valves and the other camshaft to control the exhaust valves. The timing of the valves is very important, the piston movement is very fast when the engine is working, if the valves open when they should not be opened, and close when they should not be closed, it will cause the engine to not work properly and even be damaged. If the valve timing is not right, then there may be a phenomenon of top valve, which is a very serious failure, which can cause serious damage to the engine.

The timing of the valves of the engine with variable valve timing system will change, and the timing of the valves will also change when the engine is in different operating conditions, which can improve the efficiency of the engine and reduce fuel consumption. If the control mechanism of the variable valve timing system is broken, it can also cause the engine's valve timing to be inaccurate. After this fault code appears, it should be carefully checked.

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Land Rover rear differential.

Failure repair cases.

Original. Browse: 3123

Updated Time:2017-04-27 03:41

Land Rover rear differential fault repair case.

Fault phenomenon: A 2008 Range Rover.

Off-road vehicle with a supercharged V8 engine.

The mileage is more than 30,000 km. The car is equipped with air suspension and an electronic differential lock at the rear.

Because the ABS and dynamic stability system indicators on the instrument are lit, the transmission.

The active terrain selection silver digging system and air suspension system indicators near the gear lever were all turned off, and the vehicle could not be driven, so it was towed to the service station for maintenance.

Check Analysis:1Fault codes.

The fault code is read by the fault diagnosticator, and the fault code is stored in multiple systems.

1) Rear differential system: P0806-00 clutch sensor front rush nuclear circuit out of range; P080A-00 clutch position not learned; P186D-00 clutch jamming.

2) Active terrain selection system: U0401-94 engine and transmission control unit data are invalid; U0402-94 transmission control unit data is invalid; U0416-86 dynamic stability system control unit data is invalid; U0403-94 transfer case control unit data is invalid; U0421-94 Air Suspension Control Unit data is invalid.

3) Air suspension system: U0416-86 dynamic stability system control unit data is invalid.

4) Dynamic Stability System: U1A4A-68 rear differential control unit data is invalid.

2.Analyse. Judging by the fault code, the most likely point of failure is to the rear differential. Before we get into troubleshooting, it's worth taking a brief look at the Range Rover's rear differential with differential lock and all-terrain options.

Summary. P0171 is a fault code in which the air-fuel mixing ratio system is out of balance, while P0365 is a fault code in which the input voltage of the engine timing wheel sensor A circuit is low.

Land Rover P042E-77 malfunction.

Land Rover P042E-77 failures are generally caused by the failure of the faux fuel pressure sensor or the blind dismantling of the fuel pump. It is recommended to check whether the fuel pressure sensor is damaged, or to check that the fuel pump is working properly. If both are found to be normal, consider replacing the fuel filter or cleaning the fuel system.

Workaround: Solutions for Land Rover P042E-77 failures may vary depending on the type of failure. If it is caused by a fuel pump failure, the fuel can be replaced and the pump can be covered; If it is caused by the failure of the exhaust camshaft, the exhaust camshaft can be replaced; If it is caused by a faulty exhaust line, the exhaust line can be inspected and if damaged, the exhaust line can be replaced.

P0171P0365 Can you please analyze it?

P0171 is a fault code for an air-fuel mixing system that is out of balance, and P0365 is a fault code for low voltage input to the A circuit of an engine timing wheel sensor.