Overview
| MLIT filing number | 1122850 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | March 30, 2009 |
| Manufacturer(s) | Hino |
| Component | Engine Control Computer |
| Production period | December 2005 — July 13, 2007 |
| Vehicles affected | 139 units |
Defect
The engine fuel control program is incorrectly calibrated. When low-viscosity winter diesel fuel is used, the program increases fuel injection volume and advances injection timing, raising combustion pressure. Incomplete combustion causes carbon deposition, which damages the pistons. Continued operation can result in engine failure and, in the worst case, render the vehicle inoperable.
Corrective action
On all vehicles, replace the engine control computer with the corrected part and replace the engine with a new unit.
Affected models & chassis ranges
This filing lists 4 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 |
|---|---|---|
| PK-SHD1EBG | Scania | YS2R4X20002008222 — YS2R4X20002011885 |
| PK-SHD1EBJ | Scania | XLER4X20005131658 — XLER4X20005164106 |
| PK-SHD1FBG | Scania | YS2R4X20002007129 |
| PK-SHD1FBJ | Scania | XLER4X20005133760 — XLER4X20005163690 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
原動機の燃料制御プログラムが不適切なため、冬季用の低粘度燃料（軽油）を使用した場合、燃料噴射量が増えるとともに燃料噴射時期が早くなり、爆発圧力が増加するとともに、燃焼不良によりカーボンが堆積し、ピストンが損傷するものがある。そのため、そのまま使用を続けると、最悪の場合、エンジンが破損し、走行不能となるおそれがある。
改善措置
全車両、エンジンコンピュータを対策品と交換するとともに、エンジンを新品と交換する。
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=3002064