Diagnostics. Fuel System Archives - Counterman Magazine
When To Replace Sensors And Why

Sensors are designed to last the life of the vehicle or until they wear out.

Is There Enough Pressure?

The ins and outs of fuel injection diagnosis and service.

When Should You Replace an Oxygen Sensor?

By Gene Markel  Is there a mileage or time requirement for oxygen sensor replacement? Simple answer: No. Oxygen sensors were first used for fuel trim and emissions in the late 1970s and into the mid-1990s. A single sensor was installed into the exhaust stream to modify fuel delivery and maintain catalytic converter efficiency. Beginning Jan.