What if Passat B5 doesn't work well?

About the problem that your car is not easy to run, it may be because of carbon deposition in the throttle and idle motor, which leads to poor atomization of mixed gas, abnormal combustion and cold running of the car; It is also possible that the fuel in the electronic control system has poor performance of maintaining constant pressure and low fuel pressure, which leads to poor fuel injection atomization and difficult starting. It may also be caused by excessive carbon deposition in the air intake, intake valve, combustion chamber, oil nozzle and spark plug. Another possibility is that when the motor is started, the high voltage circuit of the ignition system is weak and it is difficult to start.

It is suggested that you can turn the key to the fully open position of the instrument light when starting, and wait for a while, or the engine can complete the self-test procedure, which is also beneficial to the whole engine and other electrical equipment. At this time, you can hear the noise of the oil pump. After the sound is over, close the key door, then repeat the above operation two or three times, and then start it again.

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