Why do I keep getting a p0172 code?
Causes of Code P0172 and How to Fix. There are several reasons why this problem could exist. The most common reasons include a faulty oxygen sensor or a dirty mass air flow sensor (MAF). In addition, here are some additional causes of throwing code PO172.
Why is my oxygen sensor throwing code po172?
But in addition to that, here are some additional symptoms: There are several reasons why this problem could exist. The most common reasons include a faulty oxygen sensor or a dirty mass air flow sensor (MAF). In addition, here are some additional causes of throwing code PO172.
Is the p0172 fuel injection system too rich?
P0172 with P0175 or MAF DTCs – If you note both P0172 and P0175 or concurrent MAF-related DTCs, then you can likely rule out individual cylinder, ignition, and fuel injector problems. Instead, focus on the fuel injection system and the MAF.
Can a faulty O2 sensor cause faulty spark plugs on driver side?
Also if you are jumping on the highway without letting your car warm up, your spark plugs can actually shatter. When an O2 sensor goes bad the ecu knows it and ignors it so only enextended driving period may cause the plugs to foul but certainley not in the short run .
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?
What does it mean when your ECU says p0172?
P0172 indicates that there is too much gasoline being detected in the exhaust gases exiting the combustion chamber. The ECU uses a number of instruments, such as the mass air flow sensor (MAF), oxygen sensors, and manifold absolute pressure (MAP) to monitor the air-fuel ratio of the engine.
Is it okay to drive a car with p0172?
It is okay to drive a vehicle with P0172 for a short period of time, but driving with this code for an extended period of time can cause internal engine damage and failure of the catalytic converter. Code P0172 Common Diagnosis Mistakes It is important to complete the entire diagnostic process when diagnosing P0172.
What should I do if my p013a sensor is reset?
Now, clear the codes and see if the P013A is reset. If the code is reset, start the engine, allow it to reach normal operating temperature, and then let it idle (with the transmission in neutral or park). Use the scanner data stream to observe O2 sensor input data.
What does the p013a code on OBD-II mean?
Although generic, the specific repair steps may vary depending on make/model. When an OBD-II equipped vehicle has a stored P013A code, it means that the powertrain control module (PCM) has detected a slow response time from the downstream (or post catalytic converter) oxygen (O2) sensor or circuit for engine bank one.
What does fault code p0172 and p0175 mean?
P0172/P0175 Diagnostic Theory for Shops and Technicians. When a vehicle has the fault code P0172 and or P0175, it means that computer can no longer automatically adjust the mixture between air and fuel. Code P0172 applies to Bank 1 and P0175 applies to Bank 2.
Now, clear the codes and see if the P013A is reset. If the code is reset, start the engine, allow it to reach normal operating temperature, and then let it idle (with the transmission in neutral or park). Use the scanner data stream to observe O2 sensor input data.
Although generic, the specific repair steps may vary depending on make/model. When an OBD-II equipped vehicle has a stored P013A code, it means that the powertrain control module (PCM) has detected a slow response time from the downstream (or post catalytic converter) oxygen (O2) sensor or circuit for engine bank one.
What causes the O2 sensor to read p0172?
It is important to complete the entire diagnostic process when diagnosing P0172. Many people will replace the air-fuel sensor or O2 sensor as soon as they get a bad reading, but the root cause is often a dirty or faulty Mass Air Flow (MAF) Sensor or vacuum leak, thus causing the O2 or A/F sensor to read differently to compensate.
Why is my p0172 system too rich bank 1?
Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible) P0171 is showing on scanner but not a service light on , then after about 30 miles p0172 go’s active and turns service engine light on . Seems like it’s running fine ,but cannot get anyone to figure out the 172 code rich bank 1 .
What causes a car to throw a code po172?
The most common reasons include a faulty oxygen sensor or a dirty mass air flow sensor (MAF). In addition, here are some additional causes of throwing code PO172. Faulty fuel injectors leaking fuel into the combustion chamber
P0172 with P0175 or MAF DTCs – If you note both P0172 and P0175 or concurrent MAF-related DTCs, then you can likely rule out individual cylinder, ignition, and fuel injector problems. Instead, focus on the fuel injection system and the MAF.
Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible) P0171 is showing on scanner but not a service light on , then after about 30 miles p0172 go’s active and turns service engine light on . Seems like it’s running fine ,but cannot get anyone to figure out the 172 code rich bank 1 .