Dongfeng Nissan Teana P0011 What is the fault?

Hello, according to your question, P0011 means engine failure.

The engine fault light is on the solution.

1. Clean the engine.

Once the engine failure light is on, the owner should clean the engine in time, and there are currently two correct cleaning methods:

1) Go to the repair shop to clean the carbon deposits with a special cleaning agent.

2) Clean the entire fuel system with good fuel additives, including removing carbon deposits in the cylinder.

2. Add higher grade gasoline.

After the engine cleaning, because the compression ratio of the current automobile engine that meets the national IV emission standard is generally above, this kind of car is not suitable for long-term gasoline below 95. In order to keep the engine in good working condition, the owner can choose to add 95 or 97 gasoline, which can usually solve the problem of the engine failure light on.

3. Improve fuel quality.

Since the domestic fuel cannot meet the requirements of the current high-efficiency engine for the time being, it is necessary to improve the quality of the fuel by yourself. For example, using good fuel additives to improve the cleanliness level of fuel should be the best way.

This fault code is that there is a problem with the variable valve intake valve control, it may be the variable valve control solenoid valve hairpin, it is recommended to remove the solenoid valve and clean it, see if the troubleshooting is not, or if it is not ruled out, it is still not ruled out to replace it.

Fault code: P0138

Chinese definition: oxygen sensor circuit high voltage (row 1, sensor 2)English definition: o2 sensor circuit high voltage (bank 1, sensor 2).

Category: Fuel or air.

Background: The role of the oxygen sensor is to determine the oxygen content in the engine exhaust to correct the amount of fuel injected so that the engine can obtain the best air-fuel ratio. This fault code appears when the voltage of the heated oxygen sensor signal is consistently higher than volts for a set period of time.

Summary. The handling of the P0101 fault code is to contact the local dealer for maintenance.

P0101 fault code refers to the abnormal air flow sensor, which is caused by: 1. PCV system leakage; 2. Oxygen sensor failure; 3. Exhaust leakage or EGR leakage near the oxygen sensor; 4. The air flow MAF sensor is too dirty; 5. The fuel injector is blocked, and the fuel pump is not enough. Fault codes refer to:

After the car fails, it is detected by the computer, which is convenient for maintenance personnel to accurately find the faulty parts and repair them. When clearing **, it is necessary to strictly follow the clearance method of the fault code specified by the specific model, and the negative pole of the battery cannot be removed at will.

The handling of the P0101 fault code is to contact the local dealer for maintenance. The P0101 fault code refers to the malfunction of the air flow sensor, and its cause is:

1. PCV system leakage; 2. Oxygen sensor failure; 3. Exhaust leakage or EGR leakage near the oxygen sensor; 4. The air flow MAF sensor is too dirty; 5. The fuel injector is blocked, and the fuel pump is not enough. The fault line hole code refers to: after the car breaks down, it is detected by the computer socks, which is convenient for maintenance personnel to accurately find the faulty parts and repair.

When clearing **, it is necessary to strictly follow the clearance method of the fault code specified by the specific model, and the negative pole of the battery cannot be removed at will.

Mass air flow sensor circuit B1

Check the plug or wiring of the air flow meter for falling off and short circuiting.

I've checked this and didn't see any signs of this, and I'm not sure if the air flow meter is damaged, but I'm not sure about the direction.

Normally, it should be, and you can try to replace it.

I'm not sure about it now, because it will take him about a month to write this fault code, and there must be no problem at the time, but it will be a month again, which is embarrassing.

Such a normal fault code is a problem with the flow meter.

Tian Lai P0420 is the meaning of the exhaust pipe three-way catalytic converter is faulty and damaged.

A catalytic converter (also known as a catalytic purification converter) is an exhaust gas purification device that uses the action of a catalyst to convert CO, HC and NOx in the exhaust gas into a gas that is harmless to the human body. It is generally located before the muffler of the exhaust pipe.

The electronic control unit (ECU) detected that the exchange rate of the oxygen sensor 1 2 was comparable to that of 1 1 and therefore inferred that the catalytic converter system was too inefficient. Causes of failure include exhaust leakage near the exhaust pipe or exhaust manifold, catalytic tank failure, engine coolant temperature (ECT) sensor failure, engine fire or timing lag, dirty oil, faulty oxygen sensor, fuel system pressure too high, etc.

When your car is troubleshooting, the fault needs to be cleared**. When clearing the fault, be sure to strictly follow the clear method of the fault code specified by the specific model, and pay attention to the fact that you cannot simply remove the negative pole of the battery to clear the fault.

Summary. <>

Hello dear! We are happy to answer for you: the simultaneous occurrence of two fault codes of RI Teana P0011 and P0021 generally indicates a valve timing variable system failure, which may be caused by regulator jamming or related sensor failure.

Nissan Teana P0011 and P0021 two fault codes appear at the same time.

Hello dear! We are glad to answer for you: the two fault codes of the Ri Teana P0011 and P0021 appear at the same time, which generally represents the fault of the valve timing variable system, which may be caused by the regulator Catan lag or the failure of the relevant sensor.

Extended information: There are many electronic control systems in today's cars, such as engine control systems, transmission control systems, body control systems, etc., these systems can be understood as small computer systems made of small processors, and special software is installed inside to control related functions. Since it is computer-controlled, the computer system has a lot of vehicle operation-related parameters, so the engineer can design a diagnostic program to judge the fault by monitoring the reasonable xing of the relevant parameters, so that the vehicle can be reminded of the owner as soon as possible after the problem, and at the same time facilitate the troubleshooting during maintenance.

Let's say your car breaks down and idles up to 1200 rpm. At this time, the diagnostic program in the ECU will find the abnormality, and after ruling out the possibility that the ECU actively increases the idle speed, the diagnostic program can identify the engine as faulty, and the idle speed is high. The diagnostic program then lights up the engine fault absence lamp to remind the driver to check in time, and at the same time stores the fault in the ECU's memory**, so that the cause can be found during maintenance, and a fault code is generated.

Three chains, three chain tops, two paper pads, and two solenoid valves have been replaced, and the fault is still the same, and the variable wheel has not been replaced.

There are three main ways to eliminate fault codes: solve the fault, use the diagnostic instrument to send instructions to clear the fault code, and disconnect the battery.

Dear, disconnect the battery.

The detection computer can clear the code, and it will be reported again after a while.

Disconnect the battery.

Turn off the power for 10 minutes.

I've also tried to break for half a day.

Provide the following faults**.

Dear, provide the next **, here let the engineer help you inquire.

p0011，p0012

Fault**. Dear, hello the engineer has recovered,**Find out that the answer you just gave you is the same,Because the fight was not done for the on-site inspection of the Jianyin Liang method,The specific details are not in the way to be exquisite。

Fault code: P0171

Chinese definition: The system (air-fuel ratio) is too thin.

Definition: systemtoolean

Category: Fuel or air.

Background: Fuel correction refers to the electronic control unit (ECU) that controls fuel delivery by increasing or decreasing the injector opening time, so that the engine can achieve the best air/fuel ratio. This fault code can occur if the adaptive fuel control system has reached its compensation limit and the air/fuel ratio is still very thin.

Meaning in detail: Fuel trim is when the Electronic Control Unit (ECU) controls the delivery of the fuel by increasing or decreasing the time the injectors are turned on, resulting in the engine achieving the best air/fuel ratio (air-to-gasoline mass ratio: 1).

The air-to-air ratio is too strong, which means that the fuel delivery volume is too large, and the air-run ratio is too thin means that the fuel delivery is too small. This fault code can occur if the adaptive fuel control system has reached its compensation limit and the air/fuel ratio is still very thin. Causes of failure include air leakage after the air flow (MAF) sensor, PCV system leakage, oxygen sensor failure, exhaust leakage near the oxygen sensor, EGR leakage, air flow (MAF) sensor failure, dirty fuel filter, insufficient fuel pump supply, fuel pressure regulator failure, fuel injector blockage, engine speed sensor failure, electronic control module (PCM or ECM) failure, etc.