XJ-S Convertible (XJ27) L6-4.0L (1996)
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4.
Remove the four retaining screws of the top ECM cover (i.e. the cover adjacent to the red connector) using a Torx 20 anti-tamper type bit.
Remove the cover.
5.
Remove the seven retaining screws of the printed circuit board (8, Illustration 2). Fold the printed circuit board away from the body of the ECM
unit and support it on a block of wood (6, Illustration 2) so that no strain is placed on the ribbon connectors (7, Illustration 2). Allow a clearance
space (5, Illustration 2) so that no damage can occur from contact with the mounting brackets.
6.
The modification kit contains two microchips, one each of the 28-pin (1, Illustration 2) and 32-pin (2, Illustration 2) design.
7.
Remove the covers (4, Illustration 2) from the microchips on the printed circuit board. Remove each cover by applying a side-to-side rocking
action, gripping the cover lightly with combination pliers midway along each long side.
Caution:
Do not touch the printed circuit board with the pliers, or mark the surface of the printed circuit board.
