Removal and Installation: 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.
- Disconnect the battery or batteries. Refer to Battery Disconnect
.WARNING: Battery acid and battery acid fumes are extremely dangerous and can cause severe burns and explosion. To help reduce the risk of personal injury;
- Wear appropriate goggles and protective clothing.
- Always properly ventilate the area where the service is being performed.
- Never allow battery fluid to come in contact with skin, eyes, fabrics or painted surfaces.
- To avoid arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.
- If acid contacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.
- Remove the DOC and DPF assembly and the decomposition tube and SCR catalyst assembly together. Refer to Removal and Installation .
- Remove the nuts (A) that connect the DOC and DPF assembly to the decomposition tube and SCR assembly.CAUTION: Do not reuse gasket.
- Disconnect the harness connector from the inlet NOx sensor (1).
- Remove bolts (A) that secure the inlet NOx sensor module.
- Loosen the bolts (A) and remove the inlet NOx sensor probe (2) from the exhaust outlet connection.NOTE: Take note of harness routing for correct installation.
- Disconnect any clamps that are securing the wire between the sensor body and the electronic module and remove the inlet NOx sensor (1).