Overview
| MLIT filing number | 1154731 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | May 16, 2024 |
| Manufacturer(s) | Mazda |
| Component | Computer (Engine Control) |
| Production period | December 14, 2022 — October 31, 2023 |
| Vehicles affected | 4,696 units |
Defect
(1) The engine control computer uses incorrect learning conditions for fuel evaporative gas concentration, causing the system to perform learning while the purge valve is closed and to determine the concentration as lower than actual. When the fuel temperature inside the tank rises after driving and a high-concentration fuel vapor mixture is drawn into the engine, misfires may result. In the worst case, the engine may stall.
Corrective action
(1) On all vehicles, reprogram the engine control computer with the corrected/updated software.
Affected models & chassis ranges
This filing lists 1 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| 5BA-KH5P | ＣＸ－６０ | KH5P-100009 — KH5P-105018 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
（１）エンジン制御コンピュータにおいて、燃料蒸発ガス濃度の学習条件が不適切なため、パージバルブが開弁していない際に学習し、実際よりも低い濃度として判定することがある。そのため、走行直後など、燃料タンク内の燃料温度が高くなり、高濃度のガスがエンジンに取り込まれた場合に失火し、最悪の場合、エンストするおそれがある。
改善措置
（１）全車両、エンジン制御コンピュータの制御プログラムを対策プログラムに修正する。
Source & verification
This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:
https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3009708