In December 2019, Mazda filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Computer (Engine Control), covering the MAZDA3, CX-30. The filing affects 17,367 vehicles manufactured between March 2019 and November 2019.
Overview
| MLIT filing number | 1146311 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | December 19, 2019 |
| Manufacturer(s) | Mazda |
| Component | Computer (Engine Control) |
| Production period | March 2019 — November 2019 |
| Vehicles affected | 17,367 units |
Filing in context
The Computer (Engine Control) is the most frequently cited component category in this archive, appearing in 6 of its 4,890 filings. This filing is one of 19 Mazda notifications from 2019 in this archive. For scale, 1,320 of the 4,890 filings in this archive report a larger number of affected vehicles; the vehicles involved here were manufactured over a span of about 8 months.
Defect
The engine control computer contains an improperly calibrated fuel injection control program. When a large volume of fuel vapor enters the combustion chamber, the program cannot correctly control injector fuel delivery, resulting in insufficient fuel for combustion. In the worst case, the engine may stall at low vehicle speeds.
Corrective action
On all vehicles, reprogram the engine control computer fuel injection control program to the corrected/updated software.
Affected models & chassis ranges
This filing lists 3 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-BPFP | ＭＡＺＤＡ３ | BPFP-100008 — BPFP-107998 |
| 5BA-DMEP | ＣＸ－３０ | DMEP-100011 — DMEP-102225 |
| 6BA-BP5P | ＭＡＺＤＡ３ | BP5P-100006 — BP5P-107167 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
エンジン制御コンピュータにおいて、燃料噴射制御プログラムが不適切なため、燃焼室に大量の燃料蒸発ガスが流れ込んだ際に、インジェクタによる燃料噴射量を正しく制御できないことがある。そのため、燃焼に必要な燃料噴射量が不足し、最悪の場合、低車速時にエンストするおそれがある。
改善措置
全車両、エンジン制御コンピュータの燃料噴射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=3004653
Related recalls
Same manufacturer, same component
Other Mazda filings involving the Computer (Engine Control), closest to this one by filing date.
Computer (Engine Control) — affects 17,367 vehicles.
Open recall detail →Computer (Engine Control) — affects 26,654 vehicles.
Open recall detail →Computer (Engine Control) — affects 4,696 vehicles.
Open recall detail →Computer (Engine Control) — affects 3,743 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Fuel pump — affects 146,777 vehicles.
Open recall detail →Body — affects 31,161 vehicles.
Open recall detail →Engine Control Unit — affects 10 vehicles.
Open recall detail →Engine Control Unit — affects 22 vehicles.
Open recall detail →Other systems — affects 43 vehicles.
Open recall detail →