Ford 8-Pin NOx (Nitrogen Oxide) Sensor Wire Harness Connector – Male & Female OEM

This 8-pin connector is used in Ford NOx (nitrogen oxide) sensor harnesses on diesel and gasoline direct injection platforms. The 8-pin configuration integrates NOx sensor heater, signal, reference voltage, and CAN bus circuits for the NOx sensor module. Available in Male and Female variants, bare or with 15cm pre-wired leads.

Key Specifications

About NOx Sensors

NOx (nitrogen oxide) sensors are used in modern diesel and GDI vehicles to monitor exhaust nitrogen oxide levels for SCR (Selective Catalytic Reduction) system control. The NOx sensor communicates with the ECU via CAN bus and requires a heater circuit to reach operating temperature. A degraded NOx sensor connector causes SCR system faults, AdBlue/DEF injection errors, and P20EE/P2201-series NOx sensor fault codes.

Why NOx Sensor Connectors Fail

NOx sensor connectors are mounted in the exhaust system environment, exposed to extreme heat (up to 850°C exhaust gas temperature), vibration, and road spray. Terminal corrosion or housing melting causes NOx sensor signal loss, SCR system deactivation, and emissions-related fault codes. Replacing the connector restores clean NOx sensor circuit continuity.

Variant Guide

• Male / Male 15CM – Plug-side connector for the NOx sensor module
• Female / Female 15CM – Socket-side connector for the harness side

Installation Steps

1. Allow the exhaust system to cool completely before working near NOx sensors
2. Locate the 8-pin NOx sensor connector in the exhaust harness
3. Release the locking tab and unplug the original connector
4. Transfer terminals to the new housing or splice in the pre-wired variant
5. Reconnect and clear NOx sensor fault codes with a Ford-compatible scanner (IDS/FDRS)
6. Run a drive cycle to confirm NOx sensor readiness and SCR system function

Frequently Asked Questions

Q: What Ford models use this 8-pin NOx sensor connector?
A: This connector is used on Ford Transit, F-150 (diesel), Ranger, and Mondeo with SCR diesel emission systems. Cross-reference your vehicle’s wiring diagram to confirm fitment.

Q: What fault codes indicate a failed NOx sensor connector?
A: Common codes include P20EE (SCR NOx catalyst efficiency), P2201–P2204 (NOx sensor circuit), P2BAD (NOx sensor heater circuit), and SCR system fault codes on Ford IDS/FDRS diagnostic systems.

Q: Are terminals included?
A: Yes, terminals are included with all variants.

Compatible Applications

• Ford Transit (diesel) – NOx sensor harness
• Ford F-150 (diesel) / Ranger – SCR NOx sensor connector
• Ford Mondeo (diesel) – Nitrogen oxide sensor circuit
• Ford SCR diesel emission system NOx sensor applications