The 2014 Ford Fusion typically uses four oxygen sensors in the exhaust system. They monitor both the pre-cat and post-cat conditions to control emissions and fuel mixture.
The exact sensor count can vary by engine choice and exhaust layout. The 2014 Fusion offered several engines (2.5L I-4, 1.6L EcoBoost, 2.0L EcoBoost, and 3.5L V6), and the common factory setup is four O2 sensors in total—two upstream and two downstream—though placement can differ with multi-cat exhaust configurations.
Engine options and sensor counts
The following breakdown reflects typical factory setups for the 2014 Fusion across its available engines.
- 2.5L I4 Duratec: Typically 4 O2 sensors (two upstream, two downstream) across dual catalytic converters.
- 1.6L EcoBoost: Typically 4 O2 sensors.
- 2.0L EcoBoost: Typically 4 O2 sensors.
- 3.5L V6: Typically 4 O2 sensors (two banks, two sensors per bank).
In short, most 2014 Fusion models use four oxygen sensors in total, arranged as upstream and downstream sensors on the exhaust system. Exact counts can vary by engine and exhaust configuration.
Maintenance notes
Knowing sensor locations helps with diagnosis and replacement. Always refer to the specific service manual for your exact VIN and engine code.
Common sensor locations
O2 sensors are typically threaded into the exhaust pipe or manifolds, with one or more sensors located before the catalytic converter and one or more after it. A typical setup is two sensors upstream of the catalytic converter(s) and two downstream after the converter(s).
Symptoms of a failing O2 sensor
Common signs include rough idle, reduced fuel economy, a check engine light, and poor acceleration. If you see codes such as P0131, P0133, P0134 (bank 1 sensors) or P0135, P0136, P0137, you may be dealing with a faulty O2 sensor.
Summary: The 2014 Ford Fusion typically uses four O2 sensors across its engine options, arranged as upstream and downstream sensors on the exhaust system. For precise counts tied to your exact VIN and engine variant, consult the owner's manual or a trusted repair guide.
How can I tell which 02 sensor is bad?
Set the multimeter to DC voltage and probe the sensor's signal wire. A good sensor fluctuates between 0.1V and 0.9V. A steady reading or no voltage means the sensor is bad.
Is there a difference between bank 1 sensor 1 and bank 2 sensor 1?
Bank 1 Sensor 1 = Upstream sensor on the side with Cylinder 1. Bank 1 Sensor 2 = Downstream sensor on the side with Cylinder 1. Bank 2 Sensor 1 = Upstream sensor on the opposite side.
How many oxygen sensors are on a 2014 Ford Fusion?
two oxygen sensors
How many oxygen sensors does my Ford Fusion have? Most 2014-2020 Ford Fusions with 4-cylinder engines (1.5L, 2.0L, 2.5L) have two oxygen sensors: one upstream (before the catalytic converter) and one downstream (after the catalytic converter). They are often referred to as Bank 1 Sensor 1 and Bank 1 Sensor 2.
How much is an O2 sensor for a 2014 Ford Fusion?
The average price for a 2014 Ford Fusion Oxygen Sensor at Advance Auto Parts is around $86.88, with a range that starts at $61.99 and goes up to $171.99.