What is code p1172?
That code means Rear bank (Bank 1, Sensor 1) air fuel ratio circuit out of range high code. That means the voltage that is coming from that sensor is out of its normal range. It could be a bad sensor or it could be bad wiring. If you clear it, most likely it will just come back.
What does the code P1157 mean?
P1157 Meaning The Air/Fuel Ratio (A/F) sensor 1 is installed in the exhaust system and detects oxygen content in the exhaust gas. If the A/F sensor (sensor 1) voltage is low, the air/fuel ratio is lean, and the ECM uses A/F feedback control to issue a Rich command.
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.
What to do when the p0107 code comes back?
Reset the fault codes and then perform a road test. If the P0107 code comes back, then follow the test procedure. Check the MAP sensor voltage in and out along with the electrical connector and wiring. Disconnect the electrical connector and then reinstall to ensure a fresh and clean electrical connection.
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.
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 are the symptoms of the p0172 trouble code?
What are the symptoms of the P0172 code? 1 A Check Engine Light being set 2 Higher fuel consumption 3 Black smoke coming from the exhaust
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.