Why does my Honda Civic p0172 smell bad?
Exhaust Smell/Color – Depending on how rich the motor is running, there could be some exhaust odor or discoloration. Fouled Spark Plugs – The spark plugs can foul if the engine runs very rich for a long enough period of time. This youtube video is a great resource for diagnosing the P0172 trouble code in your Civic.
What is the trouble code on a Honda Civic?
Honda Civic P0172: Fuel System Rich – Bank 1. A common trouble code with the Honda Civic is P0172. This code number references a number that is given to you when you plug your car into a OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose.
What does p0172 mean on a Chevy Silverado?
It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. It means that the motor is running with a rich condition. P0172 is thrown when the oxygen sensors detect that the air fuel mixture is too rich.
What causes Honda Civic O2 sensor to go bad?
Honda Civic O2 Sensor Mass Air Flow Sensor – The mass air flow sensor calculates the volume of air entering the engine. If it has gone bad, the air fuel mixture will be off and the P0172 code will show. Bad Fuel Injectors – If you have one or more fuel injectors that have gone bad that can certainly cause the air/fuel mixture to go bad.
What causes a Honda Civic to throw a p0172 code?
This would be the opposite of a lean condition, which’ll throw P0171. The P0172 code on a Honda Civic will often be thrown if the fuel injection system is not operating properly. Typically the code will be triggered by a rich condition in the engine. There aren’t usually any drivability issues associated with P0172.
What to do if check engine light code p0172 persists?
If check engine light code P0172 persists after you have inspected the air intake system and cleaned the Mass Air Flow (MAF) Sensor, perform a fuel pressure test. If any components in the fuel system are failing, replace them as necessary.
Honda Civic P0172: Fuel System Rich – Bank 1. A common trouble code with the Honda Civic is P0172. This code number references a number that is given to you when you plug your car into a OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose.
Honda Civic O2 Sensor Mass Air Flow Sensor – The mass air flow sensor calculates the volume of air entering the engine. If it has gone bad, the air fuel mixture will be off and the P0172 code will show. Bad Fuel Injectors – If you have one or more fuel injectors that have gone bad that can certainly cause the air/fuel mixture to go bad.