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Yugo Yugo L4-1300cc 1.3L (1991)01 · Relays and Modules
01 · Diagnostics

Campaign - Water Infiltration At the E.C.U. (Engine Control Module)

Make
Yugo
Model
L4-1300cc Yugo
Engine
L4-1300cc 1.3L
Year
1991
Section
Sep › 91 › Campaign - Water Infiltration At the E.C.U.
Relays and ModulesCampaign - Water Infiltration At the E.C.U. · page 1 of 3
Campaign - Water Infiltration At the E.C.U. (Engine Control Module) – Yugo Yugo L4-1300cc 1.3L (1991)

Technical Service Bulletin # 91V130

Date: 910901

Campaign - Water Infiltration At the E.C.U.

CAMPAIGN:

91V-130

DATE:

September 3, 1991

TO:

Dealer Principle, Service Manager, Warranty Manager

FROM:

Yugo America, Inc.

SUBJECT:

Yugo Voluntary Recall

On 1990 - 1991 E.F.I. GV Plus cars there is the possibility of water infiltration at the three studs that support the E.C.U.

We ask that you check your vehicle inventory and repair any GV Pluses in stock which have not been repaired, as indicated by the presence of a colored
sticker on the trim panel below the passenger's side dashboard.

The Repair Procedure

1.

Disconnect the battery.

2.

Remove the knee bolster.

3.

Remove the plastic shield under the E.C.U.

4.

Take off the three nuts and washers supporting the E.C.U.

5.

Lower the E.C.U.

6.

Install the supplied washers to the three E.C.U. support studs (push them all the way up the stud).

7.

Reinstall the E.C.U.

8.

Reinstall the plastic shield.

9.

Reinstall the knee bolster.

10.

Put the sticker on the plastic shield over the E.C.U. so you can look up under the dash and see it for identification.

11.

Re-connect the battery.

12.

Start and run the car.

Dealer Info.

DATE:

September 3, 1991

TO:

Dealer Principal, Service Mgr., Parts Mgr., and Warranty Mgr.

FROM:

Yugo America, Inc.

SUBJBCT:

Yugo Voluntary Recall Campaign on 1990/1991 Yugo GV Plus Vehicles

Yugo America, Inc. has identified a production defect affecting 1990 and some 1991 model Yugo GV Plus vehicles and is initiating a voluntary recall to
correct it. The problem is poor sealing of the Electronic Control Unit (ECU) or (PCME) on its mounting studs at the firewall, which can allow water to
infiltrate the unit, resulting in its failure. In order to repair the defect, rubber sealing washers must be installed on the ECU mounting studs between the
unit and the firewall to prevent water ingress.

A production running change has been instituted to address the problem on future shipments of vehicles. A port modification program has also been
initiated so that all future vehicle deliveries will be unaffected by this recall. Port-rectified vehicles can be identified by the presence of a colored sticker
on the plastic shield under the passenger's side of the dashboard.

Yugo GV Plus model vehicles retailed to date will be recalled for repair of this problem. In addition, all such models currently in your dealership's
inventory should also be repaired prior to retail delivery.

Attached with this letter are:

1.

Detailed instructions for effecting this repair, and for filling out the Recall Claim Form.

2.

Detailed instructions for filing a reimbursement claim.

3.

A copy of the owner notification letter.

Service Copy

SERVICE

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