O2 Oxygen Sensor Upstream Downstream for Ford Edge Escape Focus (2013-2015) 2.0L

Direct-Fit O2 Oxygen Sensor Kit for 2013-2015 Ford Edge,Escape,Focus (U387/C520/C346)

What it Does: This upstream and downstream O2 sensor kit monitors exhaust oxygen on 2013-2015 Ford Edge,Escape,Focus 2.0L models for closed-loop fuel trim and catalyst diagnostics.

The Stock Ford Edge,Escape,Focus Sensor Failure

Factory oxygen sensors on the U387 Edge, C520 Escape, and C346 Focus equipped with the 2.0L EcoBoost / GDI engine suffer severe exhaust heat soak and carbon fouling. Repeated thermal cycling fractures the zirconia ceramic element and burns out internal heater windings, while cold-start condensation accelerates electrode poisoning. Sluggish lambda switching triggers P0135, P0141, or P0420 fault codes and forces inaccurate open-loop fueling.

Common Symptoms of a Failing OEM Oxygen Sensor

• Check Engine Light / DTCs: P0135, P0141, or P0420 from heater or response failure.
• Rough Idle & Hesitation: Delayed feedback disrupts injector pulse widths under load.
• Excess Fuel Consumption: Rich open-loop operation wastes fuel and overheats converters.

The Direct-Fit Zirconia Oxygen Sensors Solution

Replacing both upstream and downstream sensors as a matched set restores factory air-fuel metering and catalyst efficiency monitoring. Each unit features a corrosion-resistant stainless steel housing, thermal-shock-resistant zirconia ceramic element, and rapid-warmup internal heater. Factory-length harnesses and OEM weatherpack plugs bolt directly into the exhaust bungs with zero splicing. Engineered to match 234-5097, 234-4575, 8F9Z9F472A, and CV6Z9G444A specifications, they immediately stabilize short- and long-term fuel trims.

What's Included

• 1x Upstream Oxygen Sensor
• 1x Downstream Oxygen Sensor

Technical Specifications

Compatibility

• 2013-2014 Ford Edge 2.0L
• 2013-2015 Ford Escape 2.0L
• 2013-2014 Ford Focus 2.0L

Frequently Asked Questions & Fitment Warnings

Does this fit the U387/C520/C346 Edge,Escape,Focus?

Yes. Direct fit for 2013-2015 Ford Edge,Escape,Focus 2.0L (Edge 2013-2014, Escape 2013-2015, Focus 2013-2014). Verify 2.0L engine before ordering; excludes other displacements.

Will this clear P0135/P0420 codes?

Yes, for sensor faults. Resolves heater/switching codes (P0135, P0141); persistent P0420 indicates catalyst damage.

Are connectors plug-and-play?

Yes. OEM plugs install directly without splicing; coat threads lightly with sensor-safe anti-seize.

The Ford Precision Standard

Engineered for exact air-fuel metering across Ford 2.0L platforms. Replacing both sensors together restores crisp closed-loop fuel control and CEL-free emissions compliance.