LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 1982 >> 260 V6-2849cc 2.8L SOHC B28F >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Technical Service Bulletins >> Updated Lambda Control Unit - Updated
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Updated Lambda Control Unit - Updated

Subject: Control Unit Lambda Sond System B28F 1981

Date: July, 1982

Product: Cars

Group: 25

No.: 102

This Bulletin Applies to the USA and Canada.

Replacing the Lambda Sond Control Unit on B28F 1981





A new control unit was introduced on 1982, B28F engines. The new unit supercedes the earlier type used on B28F, 1981-1982.

B28F, 1981 California Versions
New and early type of control units are interchangeable.


B28F, 1981 Federal and Canadian Versions





Install a jumper wire between connectors 26 and 31. The parts required are 8Omm (3.2 inch) of wire, O.75mm (.030 inch) diameter - 14 gauge. Also two connectors, P/N 946640-0.





Parts Information