What causes a p0172 code in OBD-II?
Like any other OBD-II code, a P0172 can be caused by a variety of problems. In other words, there is no easy way to pinpoint what’s causing the problem other than examining the critical parts responsible for maintaining the right fuel mixture. A saturated carbon canister due to packing the fuel tank.
Can a dirty air filter cause a p0172 code?
Like any other OBD-II code, a P0172 can be caused by a variety of problems. In other words, there is no easy way to pinpoint what’s causing the problem other than examining the critical parts responsible for maintaining the right fuel mixture. A dirty air filter can cause code P0172.
What causes a fuel system too rich code?
A saturated carbon canister due to packing the fuel tank. Faulty O2 sensor (but O2 sensors more commonly fail by reading lean, not rich). A clogged air filter can cause code P0172. What are the Common Symptoms of the P0172 Code?
How does fuel trim work on a PCM?
Fuel Trim is the ECM/PCM’s programmed response to perceived rich or lean conditions as reported by the Oxygen Sensor (s). Short term and long term fuel trim are usually displayed as a percentage; the scale is laid out like a number line, with zero in the middle, positive numbers on the right, and negative numbers on the left.
What causes the p0172 OBD-II trouble code?
What causes the P0172 code? A dirty mass air flow sensor overstating the amount of air entering the engine which may cause excessive fuel delivery A faulty fuel regulator, which may not be regulating the pressure of the going to the engine as it should
What happens if the p0172 code is too rich?
If the the air-fuel ratio is rich enough, a black smog will come out of the exhaust, which is harmful to the environment. What repairs can fix the P0172 code? It is highly recommended to check the condition of the spark plugs and the operation of the coolant temperature sensor. Need help with a P0172 code?
A saturated carbon canister due to packing the fuel tank. Faulty O2 sensor (but O2 sensors more commonly fail by reading lean, not rich). A clogged air filter can cause code P0172. What are the Common Symptoms of the P0172 Code?
What do you need to know about OBD-2 trouble code?
1 A repair of a vacuum leak 2 A replacement of a faulty fuel injector, fuel pump, or fuel regulator 3 Replacement of an excessively restricted air filter 4 Replacement of the thermostat or coolant temperature sensor 5 A replacement of the spark plugs 6 A cleaning of the oxygen sensors and mass air flow sensor