What causes P0172 Bank 1 fuel system too rich?
1 Answers
P0172 Bank 1 fuel system too rich is caused by abnormal gasoline filter pressure, abnormal fuel injector flow, abnormal air intake, malfunctioning oxygen sensor, high-pressure fuel pump leakage, etc. When the car has a trouble code, you can quickly check the trouble code at a 4S shop to obtain the corresponding trouble code explanation and solution. Here are the precautions for clearing car trouble codes: 1. When a trouble code appears and needs to be cleared, the clearing method specified for the car model should be followed to remove the trouble code. 2. When clearing the trouble code, do not arbitrarily disconnect the battery's negative terminal to clear the trouble code, as this may cause the car's control center computer to malfunction and may also result in certain functions not working properly.