MT-004-22
Service Bulletin Details
Public Details for: MT-004-22
Some vehicles may experience the check engine light on with dtc P0171 (fuel trim too lean) and possibly dtcs p030x (misfire). Vehicles having this concern should use the following inspection/repair procedure.
- 2023 - 2022 - 2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 - 2012 -
Models from 2023
| 2023 MAZDA CX-30 |
| 2023 MAZDA CX-5 |
| 2023 MAZDA CX-50 |
| 2023 MAZDA CX-9 |
| 2023 MAZDA MAZDA3 |
| 2023 MAZDA MX-5 |
Models from 2021
| 2021 MAZDA CX-3 |
| 2021 MAZDA CX-30 |
| 2021 MAZDA CX-5 |
| 2021 MAZDA CX-9 |
| 2021 MAZDA MAZDA3 |
| 2021 MAZDA MAZDA6 |
| 2021 MAZDA MX-5 |
Models from 2020
| 2020 MAZDA CX-3 |
| 2020 MAZDA CX-30 |
| 2020 MAZDA CX-5 |
| 2020 MAZDA CX-9 |
| 2020 MAZDA MAZDA3 |
| 2020 MAZDA MAZDA6 |
| 2020 MAZDA MX-5 |
Models from 2019
| 2019 MAZDA CX-3 |
| 2019 MAZDA CX-5 |
| 2019 MAZDA CX-9 |
| 2019 MAZDA MAZDA3 |
| 2019 MAZDA MAZDA6 |
| 2019 MAZDA MX-5 |
Models from 2018
| 2018 MAZDA CX-3 |
| 2018 MAZDA CX-5 |
| 2018 MAZDA CX-9 |
| 2018 MAZDA MAZDA3 |
| 2018 MAZDA MAZDA6 |
| 2018 MAZDA MX-5 |
Models from 2017
| 2017 MAZDA CX-3 |
| 2017 MAZDA CX-5 |
| 2017 MAZDA CX-9 |
| 2017 MAZDA MAZDA3 |
| 2017 MAZDA MAZDA6 |
| 2017 MAZDA MX-5 |
Models from 2016
| 2016 MAZDA CX-3 |
| 2016 MAZDA CX-5 |
| 2016 MAZDA CX-9 |
| 2016 MAZDA MAZDA3 |
| 2016 MAZDA MAZDA6 |
| 2016 MAZDA MX-5 |
Models from 2015
| 2015 MAZDA CX-5 |
| 2015 MAZDA MAZDA3 |
| 2015 MAZDA MAZDA6 |
Models from 2014
| 2014 MAZDA CX-5 |
| 2014 MAZDA MAZDA3 |
| 2014 MAZDA MAZDA6 |
Models from 2013
| 2013 MAZDA CX-5 |
| 2013 MAZDA MAZDA3 |
Models from 2012
| 2012 MAZDA MAZDA3 |
BULLETIN NOTES This M-Tip supersedes the previously issued service M-Tip(s) listed below. The changes are noted in Red text. Previous M-Tips: Date(s) Issued: MT-021/17 12/05/17 APPLICABLE MODEL(S)/VINS 2012-2013 Mazda3 (SKYACTIV Models) 2014-2023 Mazda3 2014-2021 Mazda6 2016-2021 CX-3 2013 -2023 CX-5 2016-2023 CX-9 2022-2023 CX-30 2023 CX-50 2016-2023 MX-5 DESCRIPTION Some vehicles may experience the Check Engine Light ON with DTC P0171 (Fuel Trim too Lean) and possibly DTCs P030X (Misfire). Vehicles having this concern should use the following Inspection/Repair procedure. REPAIR PROCEDURE Inspection Procedure 1. Inspect the airbox/air filter for proper fitment and repair if necessary. 2. Inspect the MAF for correct operation according to the instructions on MGSS and repair if necessary. 3. Inspect the A/F sensor for correct operation according to the instructions on MGSS and repair if necessary. 4. Inspect the Fuel Trims during normal engine idle condition. • If fuel trims are normal after performing steps 1-3, repair is complete. • If fuel trims remain abnormal, continue to Repair Procedure. Page 1 of 2 01/03/2023 09:35 AM cciz NOTE: P0171 will set while the engine is idling or the vehicle is driven and the fuel feedback correction amount reaches the upper limit ( 25 % or more) for 20 s or more. Repair Procedure 1. Replace the fuel injectors 2. Verify fuel trims have been corrected. • If the Check Engine light turns on again, follow the Repair Procedure in the WSM. Page 2 of 2 01/03/2023 09:35 AM cciz