# P0303 on the 2017 Honda Civic

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0303

- [10230496](https://open.wenmarpro.com/bulletins/10230496), 2023-01-20: Service Bulletin \- Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment.
- [10230495](https://open.wenmarpro.com/bulletins/10230495), 2023-01-20: Service Bulletin \- This bulletin is replaced by S/B 19\-033, Warranty Extension: 2016\-18 Civic 1.5L: Software Update with A/C Control Unit Replacement; DTC P0300, P0301, P0302, P0303, P0304, or P0172; Whirling Noise from Engine.
- [10165769](https://open.wenmarpro.com/bulletins/10165769), 2019-10-09: Service Bulletin \- Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment.
- [10163173](https://open.wenmarpro.com/bulletins/10163173), 2019-07-23: Owner Notification Letter \- Some 2016\-18 Civic vehicles equipped with the 1.5 liter turbocharged engine may experience driveability issues. This may result in Diagnostic Trouble Codes \(DTCs\) P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment. These concerns may result in the Malfunction Indicator Lamp \(MIL\) turning on.
- [10163172](https://open.wenmarpro.com/bulletins/10163172), 2019-07-23: Owner Notification Letter \- Some 2016\-18 Civic vehicles equipped with the 1.5 liter turbocharged engine may experience driveability issues. This may result in Diagnostic Trouble Codes \(DTCs\) P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment. These concerns may result in the Malfunction Indicator Lamp \(MIL\) turning on.
- [10163171](https://open.wenmarpro.com/bulletins/10163171), 2019-07-23: Owner Notification Letter \- Some 2016\-18 Civic vehicles equipped with the 1.5 liter turbocharged engine may experience driveability issues. This may result in Diagnostic Trouble Codes \(DTCs\) P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment. These concerns may result in the Malfunction Indicator Lamp \(MIL\) turning on.
- [10161643](https://open.wenmarpro.com/bulletins/10161643), 2019-06-25: Service Bulletin \- Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment.
- [10161641](https://open.wenmarpro.com/bulletins/10161641), 2019-06-25: Service Bulletin \- Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment.
- [10158742](https://open.wenmarpro.com/bulletins/10158742), 2019-04-21: Service Bulletin \- Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment.
- [10158739](https://open.wenmarpro.com/bulletins/10158739), 2019-04-21: Service Bulletin \- Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 \(random misfire detected\), P0301 \(No. 1 cylinder misfire detected\), P0302 \(No. 2 cylinder misfire detected\), P0303 \(No. 3 cylinder misfire detected\), P0304 \(No. 4 cylinder misfire detected\), or P0172 \(fuel system too rich\) or a whirling noise coming from the engine compartment.