Beschreibung
xThis high-quality NOx sensor (A1065433R) for PSA (Peugeot/Citroën) monitors nitrogen oxide levels in the exhaust system and, together with the SCR catalyst (AdBlue), regulates emissions in accordance with the Euro-6 standard.
It operates reliably with a 12 V onboard power supply and provides precise measurement signals to the engine control unit (ECU), ensuring compliance with limit values and preventing error messages (e.g. NOx efficiency).
Manufactured in OE quality: robust sensor technology with integrated control unit, heat-resistant electronics, and corrosion-proof connectors ensure a long service life even at high exhaust temperatures.
Installation is straightforward: loosen the old sensor, disconnect the plug connection, insert the new sensor and lock the connector; then clear the fault codes and carry out a short test drive.
Technical notes: vehicle-specific connector, pre-assembled wiring harness; cable length/pin assignment correspond to the OE specification of the listed references.
Compatible with common Euro-6 diesel engines of the PSA (Peugeot/Citroën) platform. Fast delivery and warranty included.
Matching OE numbers: 227905433R, 93 463 067, 93 457 718, 95 528 773, 22 79 054 44R, 22790-00Q0F.
Euro-6 compatible, SCR/AdBlue capable
• OE quality: precise fit & durable
• For PSA (Peugeot/Citroën) – see references below
• Fast feedback to the ECU for stable emissions
• Heat-resistant housing & corrosion-proof connector
• Easy installation, no modifications required
• Fast delivery, warranty included
NOx Sensor: What is it?
xNOx Sensor – Essential for Modern Emission Control
The NOx sensor is a core component of the exhaust aftertreatment system. It consists of a probe and a control unit, is integrated as a single assembly into the exhaust line, and detects nitrogen oxides (NOx) in the exhaust flow. Its use ensures compliance with strict regulations such as Euro 5 and Euro 6.
Applications
- Modern diesel vehicles with aftertreatment (e.g., SCR, LNT)
- On-board monitoring and control of emissions
Operating Principle
- Operates at high exhaust temperatures
- Two-chamber concept: NOx is catalytically split, resulting oxygen is measured
- Signal transmission via CAN bus to the engine control unit (ECU)
Technical Highlights
- High-precision NOx detection under real driving conditions
- Fast response during dynamic load changes
- Robust design for continuous operation at high temperatures
- Integrated control unit for signal conditioning and diagnostics
Benefits
- Reliable compliance with Euro 5/Euro 6 limits
- Optimized aftertreatment (e.g., AdBlue dosing)
- Lower emissions and improved efficiency
- High measurement accuracy ⇒ reduced recalibration needs
- OE-spec replacement parts available
Interfaces & Communication
- CAN bus data transfer to the ECU
- OBD-capable status and fault messages
Installation Notes
- Install directly in the exhaust line per manufacturer guidelines
- Ensure proper thermal positioning (heat shielding)
- Connect to ECU/CAN network; check sealing and cable routing
In the Box
- NOx probe with integrated control unit
- Mounting hardware (vehicle-dependent)
- Installation and safety instructions
Note: Due to the sensor’s complexity and accuracy requirements, we recommend OE-quality replacement parts.
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