The whip is a 2003 Ford Ranger 3.0 V6 Flex-Fuel.<BR><BR>Recently got a check engine light, error codes point to a bad O2 sensor.<BR><BR>Sensor 1, Bank 1. From the ...

Stricter environmental controls and the requirement to create less pollution has led to far more complex automotive exhaust systems. One component of these systems is the oxygen sensor or Lambda ...

The oxygen sensors on your Toyota Celica help determine if the air-fuel ratio of the engine is rich or lean. This helps the electronic fuel injection adjust the mixture in real time and also reduce ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

As the name suggests, oxygen sensors in a car’s exhaust system sniff for oxygen, the presence of which indicates incomplete combustion and unchecked pollution. This can trigger the check engine light.

I had a test done at local auto-parts store that showed a code of PO138. They told me this indicates a problem with the oxygen sensor. I replaced the oxygen sensor and the light never went out. I ...