940 L4-2.3L SOHC VIN 88 B230F (1992)
Technical Service Bulletin # 2859
Ignition and Fuel Injection Systems - Modifications
MODIFICATION OF REX/REGINA 740/940, 1992
This bulletin deals with the early M/Y 1992 versions of the 740 and 940, it describes modifications of the ignition and fuel injection systems.
Affected Chassis Ranges:
See Service Manager Bulletin Group 00, No. 138.
Earlier vehicles which have already received the below described modifications and control unit updates are identified by a white label bearing the text
RE 92 on the inside of the fuel filler door. Check for the presence of this label before commencing work.
The main elements of the modifications are:
Replacement of fuel system control unit (all 740s and 940s, early 1992 M/Y)
Modification of wiring (all 740s and 940s, early 1992 M/Y)
Replacement of ignition system control unit (all 740s and 940s, early 1992 M/Y)
If P/N of fuel system control unit is 6842882-0, do not replace the control unit.
Ignition system control units P/N 3507696-7 marked S101529102C (or -D) must not be replaced!
On completion of the above modifications, the cold-start valve will still be mounted in position, but will be disconnected.
Information that the AC compressor is switched in will no longer be displayed as part of the "Monitor test" function in the Volvo System Tester.
The legend and the wiring diagram show the Reqina fuel injection system on completion of the modifications as per this bulletin. These figures are also
applicable to the later versions of the 1992 740 and 940.