Infiniti check engine codes
Overview
Infiniti shares engines with Nissan, especially the VQ V6. Catalytic converter codes, lean codes, and throttle body issues follow Nissan patterns.
Codes notably common on Infiniti
Infiniti specific notes
- Nissan and Infiniti electronic throttle bodies generally need throttle and idle air volume relearn procedures after cleaning or replacement.
Owner's manuals
Official Infiniti owner's manual / owner portal (manufacturer site; we do not host copies).
Repair manuals
Step-by-step service manuals for Infiniti with torque specs and wiring diagrams:
Haynes manuals for Infiniti Chilton manuals
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Recall lookup
Check open Infiniti recalls with your VIN at the NHTSA recall lookup.
Sources
- https://docs.1aauto.com/1ATBA00039/Nissan%20Throttle%20Body%20Relearn%20Procedure.pdf
- https://www.nhtsa.gov/recalls
Sources checked October 2026. Bulletins apply only to the models and years they list.
All other codes
These work the same on Infiniti as on any vehicle:
P0300 P0301 P0302 P0303 P0304 P0440 P0442 P0455 P0456 P0128 P0135 P0141 P0101 P0299 P2135 P0401