In November 2005, Mitsubishi filed an improvement campaign with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Fuel pump, covering the Pajero. The filing affects 41,385 vehicles manufactured between June 28, 1993 and April 26, 1994.
Overview
| MLIT filing number | 2103010 |
|---|---|
| Type | Improvement Campaign (manufacturer improvement measure / 改善対策) |
| Date filed | November 1, 2005 |
| Manufacturer(s) | Mitsubishi |
| Component | Fuel pump |
| Production period | June 28, 1993 — April 26, 1994 |
| Vehicles affected | 41,385 units |
Filing in context
The Fuel pump is the most frequently cited component category in this archive, appearing in 37 of its 4,890 filings. This filing is one of 140 Mitsubishi notifications from 2005 in this archive. For scale, 838 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 9 months.
Issue
On the mechanical fuel injection pump of the diesel engine, inadequate assembly instructions at the parts manufacturer resulted in an incorrect spring being installed in the fuel supply valve. This causes the fuel supply start timing to differ from the specified value. As a result, black smoke emissions may increase in certain driving conditions. Additionally, because service instructions provided to dealers for these vehicles were inadequate, some vehicles received improper dealer servicing, leaving the exhaust gas recirculation (EGR) system in a non-standard condition.
Corrective action
On all vehicles, inspect the fuel injection pump. If an incorrect spring is found in the fuel supply valve, retrofit the fuel injection pump to the correct specification. In addition, inspect the EGR system on all vehicles and restore any unit found in a non-standard condition to the correct configuration with appropriate servicing.
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 |
|---|---|---|
| Y-V26W | PAJERO | V26-3000001 — V26-3000449; V26-7300001 — V26-7300029 |
| Y-V26WG | PAJERO | V26-4000001 — V26-4007359; V26-7400001 — V26-7408053 |
| Y-V46W | PAJERO | V46-3000001 — V46-3002187 |
| Y-V46WG | PAJERO | V46-4000001 — V46-4025743 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
原動機（ディーゼル）の機械式燃料噴射ポンプにおいて、部品メーカーでの組付け作業時の指示が不適切なため、燃料供給バルブのスプリングに異品が装着されており、燃料の供給開始タイミングが異なる場合がある。そのため一部の走行領域において黒煙排出量が増大するおそれがある。なお、販売会社への当該車両に対する整備指示が不適切なため、販売会社において不適切な整備がされ、排気ガス再循環装置が正規な状態と異なる車両がある。
改善措置
全車両、燃料噴射ポンプを点検し、燃料供給バルブのスプリングに異品が装着されている車両は燃料噴射ポンプを正規状態に改修する。また全車両、排気ガス再循環装置を点検し、正規状態と異なるものは復元し、適切な整備を実施する。
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=3008678
Related recalls
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Other Mitsubishi filings involving the Fuel pump, closest to this one by filing date.
Fuel pump — affects 26,570 vehicles.
Open recall detail →Fuel pump — affects 451,369 vehicles.
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Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
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Open recall detail →All Mitsubishi recalls · All 2005 recalls · Recall Archive home