# Service bulletin 07\-133\-18

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10140483
- Published by NHTSA: 2018\-06\-11
- Manufacturer's number: 07\-133\-18
- Manufacturer's date: 2018\-02\-09
- NHTSA component: ENGINE

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10140483-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10140483-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Trouble codes named

P0327, P0328, P0332, P0333

## Vehicles listed

- 2014 to 2017 SUBARU FORESTER
- 2015 to 2017 SUBARU WRX

## Recalls for the same vehicles and component

- [16V162000](/recalls/nhtsa/16V162000.md), 2016-03-21: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
- [2016122](/recalls/tc/2016122.md), 2016-03-17: Engine

## Other bulletins for the same vehicles and component

- [09\-84\-22R](/bulletins/11037934.md), 2026-10-05, Service bulletin: ENGINE. This bulletin announces Warranty Extension and design changes made to the front exhaust pipe and covers to address the concerns of some customers regarding an odor or a rattle\-type noise/fluttering sound coming from the undercarriage, during acceleration. This is an revised version of the original bulletin.
- [02\-193\-24R](/bulletins/11034269.md), 2026-07-02, Service bulletin: ENGINE. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components \(e.g. intake valves and / or manifold, and combustion chambers\). \(This is an revised version of the original bulletin.\)
- [09\-74\-21R](/bulletins/11034264.md), 2026-07-02, Service bulletin: ENGINE; FUEL/PROPULSION SYSTEM. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components \(e.g. intake valves and / or manifold, and combustion chambers\). \(This is an revised version of the original bulletin.\)
- [02\-193\-24R](/bulletins/11033065.md), 2026-06-01, Service bulletin: ENGINE. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components \(e.g. intake valves and / or manifold, and combustion chambers\).
- [18\-230\-26](/bulletins/11033051.md), 2026-06-01, Service bulletin: ENGINE. This bulletin announces the diagnostic procedures to be used when DTCs B1571\(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM\) and B1572\(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT\) are detected by Keyless Access with Push Button Start\(KACM\).
- [15\-300\-22R](/bulletins/11027982.md), 2026-02-02, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start \(RES\).
- [09\-74\-21R](/bulletins/11027090.md), 2026-01-06, Service bulletin: ENGINE; FUEL/PROPULSION SYSTEM. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components \(e.g. intake valves and / or manifold, and combustion chambers\).
- [18\-226\-25R](/bulletins/11027083.md), 2026-01-06, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16 \(Immobilizer Key Collation Diagnosis\).
- [18\-228\-25R](/bulletins/11027081.md), 2026-01-06, Service bulletin: ENGINE; FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This bulletin announces the diagnostic procedures to be used when DTCs P2096 \(POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1\) and P2097 \(POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1\) are detected by the Engine Control Module \(ECM\).
- [18\-228\-25](/bulletins/11025790.md), 2025-12-01, Service bulletin: ENGINE; ELECTRICAL SYSTEM. This bulletin announces the diagnostic procedures to be used when DTCs P2096 \(POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1\) and P2097 \(POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1\) are detected by the Engine Control Module \(ECM\).

JSON: [/v1/bulletins/10140483](/v1/bulletins/10140483)

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