Majestic L6-4.0L (1990)
Engine Control Module: Customer Interest
Trip Computer - Innacurate Fuel Consumption Readings
SECTION:
88
INSTRUMENTS
No: 10
1990 MY
Model:
SEDAN RANGE Date: NOVEMBER, 1990
KEYPOINTS:
TRIP COMPUTER READINGS
ISSUE:
Incorrect fuel consumption readings, on trip computers Trip computers may display average fuel consumption, readings of 25-35 mpg or more, and a 99
mpg instantaneous fuel consumption reading between 2100-2200 rpm (with throttle applied).
ACTION:
A new engine management ECU (DBC 6352) was introduced at VIN 610000. As a running challange to this ECU, the fuel pulse signal was revised but
only the Lucas part number was changed to part number 80138-B.
Check the engine management ECU part number. Install the appropriate replacement as indicated below in "Parts Information".
NOTE:
Do not change the instrument pack.
PARTS INFORMATION:
Production:
Application: Replacement:
DBC 5702
VIN 591102-61000
DBC 6552
DBC 6352
VIN 610000-61507
DBC 6832
(Lucas Part No. 80138-A).
DBC 6352.
VIN 615079-onwards
no action
(Lucas Part
No.
80138-B).
WARRANTY INFORMATION:
Fault Code:
7JSU
Repair Operation Number:
18.30.01/09 (without JDS)
Time Allowance:
0.25 hrs.
