P0328 Knock sensor 1 signal too high
2 owner reports and 110 manufacturer filings across 74 model years from Audi, Honda, Subaru.
Where P0328 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2024 Audi S5 | Engine | 3 | — | Knock sensor → |
| 2023 Audi S5 | Engine | 3 | — | Knock sensor → |
| 2022 Audi S5 | Engine | 3 | — | Knock sensor → |
| 2021 Audi S5 | Engine | 3 | — | Knock sensor → |
| 2020 Audi S5 | Engine | 3 | — | Knock sensor → |
| 2019 Audi S5 | Engine | 3 | — | Knock sensor → |
| 2018 Audi S5 | Engine | 3 | — | Knock sensor → |
| 2017 Subaru Forester | Engine | 3 | — | Knock sensor → |
| 2016 Subaru Forester | Engine | 3 | — | Knock sensor → |
| 2017 Subaru WRX | Engine | 3 | — | Knock sensor → |
| 2016 Subaru WRX | Engine | 3 | — | Knock sensor → |
| 2025 Audi A6 | Engine | 2 | — | Knock sensor → |
| 2024 Audi A6 | Engine | 2 | — | Knock sensor → |
| 2023 Audi A6 | Engine | 2 | — | Knock sensor → |
| 2022 Audi A6 | Engine | 2 | — | Knock sensor → |
| 2021 Audi A6 | Engine | 2 | — | Knock sensor → |
| 2020 Audi A6 | Engine | 2 | — | Knock sensor → |
| 2021 Audi A8 | Engine | 2 | — | Knock sensor → |
| 2020 Audi A8 | Engine | 2 | — | Knock sensor → |
| 2025 Audi SQ5 | Engine | 2 | — | Knock sensor → |
| 2024 Audi SQ5 | Engine | 2 | — | Knock sensor → |
| 2023 Audi SQ5 | Engine | 2 | — | Knock sensor → |
| 2022 Audi SQ5 | Engine | 2 | — | Knock sensor → |
| 2021 Audi SQ5 | Engine | 2 | — | Knock sensor → |
| 2016 Honda Pilot | Electrical System | — | 2 | Knock sensor → |
Showing the 25 model years where P0328 appears most; it is on file for 74 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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P0328 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P0328 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.
Had car parts store use OBD electronic scanner and it revealed a code P0328: "Knock Sensor voltage High"
110 manufacturer filings name P0328. 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 P0328.
- TSB_2081342_1 Service bulletin2026-03-13 · Engine
- This bulletin provides information when there is a Drive System Malfunction, DTCs related to Knock Sensor P0327, P0332, P0328, P0333 - V6 TFS.
- 07-133-18 Service bulletin2018-11-14 · Engine
- This Service Information Bulletin announces design changes to the engine?s knock sensor which will help improve vehicle assembly line efficiency and increase durability. In some cases, the Check Engine light may illuminate and a knock sensor-related DTC set in the ECM memory: P0327, P0328, P0332 and P0333. The knock sensor for DIT engines is now utilized for NA engines to improve durability and re
- 07-133-18 Service bulletin2018-02-09 · Engine
- 2.0L Turbor Models only. This Service Information Bulletin announces design changes to the engine?s knock sensor which will help improve vehicle assembly line efficiency and increase durability. In some cases, the Check Engine light may illuminate and a knock sensor-related DTC set in the ECM memory: P0327, P0328, P0332 and P0333.
- 07-133-18 Service bulletin2018-02-09 · Electrical System
- 2.0L Turbor Models only. This Service Information Bulletin announces design changes to the engine?s knock sensor which will help improve vehicle assembly line efficiency and increase durability. In some cases, the Check Engine light may illuminate and a knock sensor-related DTC set in the ECM memory: P0327, P0328, P0332 and P0333.
What P0328 means
Source: SAE J2012 / OBD-IIKnock sensor 1 signal too high.
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 P0328
Source: NHTSA files and the OBD-II standardCan I keep driving with P0328 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.