Porsche 944 User Manual
Page 165
944 S/944 S2
Fuel System - Electronic Control
24/28
Coding of Control Unit - 944 S
Pertinent curve families are integrated in the DME control unit, in order to be able to comply
with the legislation of different countries. They can be read direct in the "actual value" menu
with a 9288 System Tester.
One each 2-pin and 3-pin plug, which are bridged differently depending on the country version,
lead out of the DME wire harness to call these curve families.
Country
Curve Family Switch
2 Pins
Version Switch
3 Pins
USA Federal States
FAG M 298
Oxygen sensor
-
-
USA Califomia
Japan
Oxygen sensor
-
Bridge against
battery voltage
928.607.421.00
ECE
-
Bridge against grd.
928.607.422.00
Sweden
-
Resistance
6.8 k against grd.
944.612.522.00
Australia
Oxygen sensor
Bridge against ground
944.612.515.00
-
DME - Diagnosing/Troubleshooting
Printed In Germany - XXI, 1989
D 24/28 - 31