P0448
2 owner reports and 166 manufacturer filings across 50 model years from Infiniti, Nissan.
Where P0448 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2017 Nissan Frontier | Fuel/Propulsion System | 6 | 1 | Fuel pump → |
| 2016 Nissan Frontier | Engine | 7 | — | |
| 2017 Nissan Rogue | Engine | 7 | — | |
| 2018 Nissan Versa | Equipment | 7 | — | |
| 2018 Nissan Frontier | Fuel/Propulsion System | 4 | 1 | Fuel pump → |
| 2018 Nissan Sentra | Engine | 5 | — | |
| 2017 Nissan Sentra | Equipment | 5 | — | |
| 2019 Infiniti Q50 | Engine | 4 | — | |
| 2019 Infiniti Q60 | Engine | 4 | — | |
| 2019 Nissan Altima | Engine | 4 | — | |
| 2018 Nissan Altima | Engine | 4 | — | |
| 2017 Nissan Altima | Engine | 4 | — | |
| 2016 Nissan Altima | Equipment | 4 | — | |
| 2019 Nissan Frontier | Engine | 4 | — | |
| 2019 Nissan Kicks | Equipment | 4 | — | |
| 2018 Nissan Maxima | Equipment | 4 | — | |
| 2017 Nissan Maxima | Engine | 4 | — | |
| 2016 Nissan Maxima | Engine | 4 | — | |
| 2018 Nissan Murano | Equipment | 4 | — | |
| 2017 Nissan Murano | Engine | 4 | — | |
| 2016 Nissan Murano | Engine | 4 | — | |
| 2018 Infiniti Q50 | Electrical System | 3 | — | Battery → |
| 2017 Infiniti Q50 | Engine | 3 | — | |
| 2016 Infiniti Q50 | Engine | 3 | — | |
| 2018 Infiniti Q60 | Engine | 3 | — |
Showing the 25 model years where P0448 appears most; it is on file for 50 in total.
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
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P0448 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P0448 on that maker’s vehicles.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
The paperwork says 'please check and advise found dtc for vent valve P0448 service bulletin ntb15-079.' they said my vehicle was over the 35k general warranty mileage
166 manufacturer filings name P0448. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P0448.
- ITB22-042 Service bulletin2022-12-06 · Engine And Engine Cooling
- MIL ON WITH DTC P0448 STORED IN THE ECM IF YOU CONFIRM The MIL is ON with DTC P0448 (VENT CONTROL VALVE) stored in the ECM. ACTION See Repair Overview on page 2 for diagnostic procedure.
- NTB15-079F Service bulletin2022-01-12 · Engine And Engine Cooling
- MIL ON WITH DTC P0448 This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- NTB19-037a Service bulletin2020-07-29 · Fuel System, Gasoline
- 2016-2019 TITAN; MIL ON WITH DTC P0448 AND WATER IN EVAP FILTER This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- NTB15-079e Service bulletin2020-04-24 · Fuel System, Gasoline
- 2005-2019 FRONTIER; MIL ON WITH DTC P0448 This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- NTB19-045b Service bulletin2020-01-08 · Engine And Engine Cooling
- MIL ON WITH DTC P0087, P0101, P0448, OR P2008, VEHICLES REGISTERED OUTSIDE OF CALIFORNIA This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- ITB19-027a Service bulletin2020-01-08 · Electrical System
- MIL ON WITH DTC P0087, P0101, P0448, OR P2008, VEHICLES REGISTERED OUTSIDE OF CALIFORNIA This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
What P0448 means
Source: SAE J2012 / OBD-IIP0448 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P0448
Source: NHTSA files and the OBD-II standardCan I keep driving with P0448 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.