Inspection After Removal

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: To avoid possible damage to engine emission and after treatment system sensors, valves and actuators, unless otherwise indicated:

Do not clean.
Do not submerge in any solvent, fluid or water.
Do not jet wash or steam clean.

Inspect the vehicle harness connector and sensor for the following:
- Cracked or broken connector
- Missing or damaged connector seals
- Dirt, debris, or moisture in or on the connector pins
- Corroded, bent, broken, pushed back, or expanded pins
- Chipped, cracked, extruded, or damaged sensor
Repair or replace parts as necessary.
Check the inlet NOx sensor for oil spray on the tip of the sensor. If oil is present, refer to Removal and Installation .
NOTE: This sensor is placed before the diesel particulate filter. It is not uncommon to have soot on the tip of the sensor. Do not try to clean the inlet NOx sensor tip unless directed to do so by fault codes or other troubleshooting symptoms.