INFINITI
ITB19-007
Manufacturer communications
- Publication date
- 2019-03-05
- Received by NHTSA
- 2019-04-15
- NHTSA record numbers
- 10158424
Manufacturer summary
Original wording in English
INFINITI; P0171 AND P0174 SERVICE INFORMATION SERVICE INFORMATION Diagnosis for DTCs P0171 (FUEL SYS LEAN B1) and P0174 (FUEL SYS LEAN B2) have been revised for the APPLIED VEHICLES listed above. When performing diagnosis for either of these DTCs, start by using the SERVICE PROCEDURE section of this bulletin. NOTE: The related Electronic Service Manuals (ESM) will be revised in the future to include these diagnostic steps.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Infiniti
P0171FUEL SYS LEAN B1Infiniti
P0174FUEL SYS LEAN B2Check vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.