What should I do if the BMW 28A0 fault code is accompanied by the lack of fire in the three cylinder

First replace the ignition coil of the three-cylinder with the ignition coil of the two-cylinder (it is also possible to choose other cylinders), then replace the spark plug with the spark plug of one cylinder, and then clear the fault code, read the fault code after going out for testing, if the lack of fire data is transferred, then the problem is in the spark plug and the ignition coil. If the fire of the third cylinder is still reported, then the fuel injector and cylinder pressure should be considered.

The lack of fire in the three cylinders does not work, check its ignition, injector, cylinder pressure.

Just listened to me, checkpoint, I'll talk to the spark plug first, and then change the power steering oil.

If the fault cannot be troubleshooting, you should do the following:

1. Check whether the fuel tank exhaust pipe is correctly embedded and inserted;

2. Check whether the oil filling port cap is sealed;

Note: It is best to use a leak detector such as the "BMW Smoke Tester" (part number 81 312 353 954). If the tubing fitting cap is not sealed, it should be replaced.

3. Check whether the air intake pipeline is sealed;

Note: It is best to use a leak detector such as the "BMW Smoke Tester" (part number 81 312 353 954).

4. Check whether the inside of the crankcase is dense;

Note: It is best to use a leak detector such as the "BMW Smoke Tester" (part number 81 312 353 954).

5. Check whether the intake valve has carbon deposits with the help of an endoscope. If there is a carbon deposit greater than Grade 4, it should be done as follows:

1) Clean the intake tract and intake valve with a BMW Walnut Sand Cleaning Tank (part number 81 29 2 208 034). Please follow the repair manual here. 11 12 670 "Cleaning the intake tract with walnut sand pellets (N54)".

How to do it: Press the accelerator pedal until about 1000rpm and hold that speed for 5 seconds; Allow the rpm to reduce to idle speed. Perform the procedure 3 times.

2) Delete DME tuning value;

3) Unplug the fuel tank exhaust valve;

4) Start the vehicle and wait for the engine to rise to an operating temperature (at least 80 degrees Celsius). Allow the vehicle to continue running for at least 10 minutes;

5) Re-insert the plug of the fuel tank exhaust valve;

6) Delete the fault record of the faulty memory;

7) Re-evaluate the vehicle.

In the digital engine electronic servo control system, the fault memory will record the fault of the chain 28A4.

1. After these faults are stored in the fault memory, these faults should be processed, and after eliminating the other faults mentioned, the vehicle is tested again and evaluated.

2. If the fault cannot be ruled out, you can first check whether the oil filling port cover is sealed, and you can also use a leak detector to check the inside of the intake pipe and crankcase to see if it is in a sealed state.

3. The endoscope can also be used to check the carbon deposition of the intake valve. Unplug the fuel tank exhaust valve, remove the DME tuning, and start the vehicle to raise the engine to 80.

4. After the vehicle has been running for at least ten minutes, remove the plug of the fuel tank exhaust valve again. Then delete the fault record of the fault storage, and then re-evaluate the vehicle.

Summary. Hello dear, I'm glad to answer for you, BMW 28A0 fault code troubleshooting, the answer to the platform for you to query: the fault phenomenon emission light is on, and the following fault is recorded in the memory of the DME (digital engine electronic servo control system).

28A0 Intake Pipe Absolute Pressure, Reliability: Pressure Too High101F01 Intake Pipe Absolute Pressure, Reliability: Pressure Too High Possible Causes of Failure The possible causes of failure are:

The intake duct behind the throttle is not sealed; The oil filler cap is not properly sealed; The fuel tank exhaust system is not sealed; The crankcase ventilation system is not sealed; The crankcase is not sealed (rear or front radial sealing rings on the crankshaft); Adjustable camshaft controls are inflexible; The electronic valve control system is not flexible; In-vehicle network, low voltage; Due to the low fuel grade, combined with driving habits and high mileage, carbon deposits in the valves.

Hello dear, I'm happy to answer for you, BMW 28A0 fault code troubleshooting, the answer to the platform for you to find: the fault phenomenon emission light is on, and the following fault is recorded in the memory of DME (digital engine electronic servo control system): 28A0 Absolute pressure of the intake pipe, macro makes the rubber credible:

The pressure is too high 101F01 Absolute pressure of the inlet pipe, credibility: the pressure is too highThe possible causes of the failure are: the air intake pipe after the solar sliding door is not sealed; The oil filler cap is not properly sealed; The fuel tank exhaust system is not sealed; The crankcase ventilation system is not sealed; The crankcase is not sealed (rear or front radial sealing rings on the crankshaft); Adjustable camshaft controls are inflexible; The electronic valve control system is not flexible; In-vehicle network, low voltage; Low fuel grades, combined with driving habits and high driving mileage, lead to carbon build-up in the valves.

Fault diagnosis and treatment methodsIf other faults related to adjustable camshaft control devices, electronic valve control systems, low voltage, fuel tank exhaust valves or other faults related to throttle valves are recorded in the DME (digital engine electronic servo control system) fault memory, then the fault of the resistance should be dealt with first; Tips for the Electronic Valve Control System Test Module: After eliminating the other faults mentioned above**, test the vehicle again to evaluate it;

Now the car is shaking a little bit.

The car will turn off when it is cool.

The reasons for the shaking and stalling of the cold car are: 1. The engine has serious carbon deposits; 2. The ignition system is slippery and obstructed; 3. The oil pressure is unstable; 4. The parts of the reed machine are aging. The solution to the BMW cold car shaking and stalling:

1. Clean the oil circuit and check whether there is carbon deposit in the idle motor; 2. Replace the spark plug; 3. Check the oil pressure and replace the parts; 4. Replace the suspension system of the engine that lacks potatoes.

Electrical wiring:

a. Aging of electrical circuits, leakage, etc., intermittent ignition faults;

b. Ignition coil or spark plug failure, poor ignition or poor conduction;

c. In terms of lines, loosening, breaking skin, etc.

d. Human operation reasons, such as carelessness or mistakes during maintenance: faults caused by touching, loose plugs, etc.

Oil circuit: a. The injection pressure is not enough, and the electronic oil pump fails;

b. The oil pipeline is blocked or there are impurities, and the oil supply is not smooth;

c. Fuel injector failure, blockage or self-failure;

d. The fuel injection caused by the line is abnormal.

e. Other faults.

Hello, check the spark plug under the ignition coil.

Ask me how your car was repaired.

How did I get it done later, I also have the same one here.

Hello, I suggest you check the spark plug ignition coil for these .

I hope it helps you, if you have any questions, please feel free to ask! Have a great trip!

The solution to the problem of BMW not being able to start without power and having a few more fault codes is to first connect to ista for diagnosis, and find that multiple modules of pt,can bus do not communicate, because there is no communication between multiple modules of the bus, there are more fault codes,Check the power supply of the module, check the bus signal waveform, check the PT, CAN bus line, and finally check the PT, CAN control unit.

The reason why BMW can't startThe vehicle's battery is dead, resulting in a low voltage that is not enough to start the car. This usually happens when the car is parked for several days and is useless, and then it can't be started. After the car is energized, the horn cannot sound, and the various instrument indicators cannot be lit normally, because the spark plug cannot be ignited normally, because the spark plug is damaged, or it is not replaced regularly.

The failure of the starting circuit is the failure of the starting relay roller skating appliance. There is a problem with the starter itself, or a related circuit problem, so that the engine cannot be driven, the fuel supply ignition problem, the tung reed material is not burned, the fuel pump is not supplied with oil, the fuel pipeline is blocked, and the fuel injector is not working well. There is no ignition coil, the spark plug and cylinder wire are faulty, there is no electric oil supply system, and the circuit of the ignition system related parts is faulty.