Calais L4-151 2.5L VIN U TBI (1989)
another chip called a Cal-Pak. If the ECM if equipped with a Cal-Pak chip, it will be located next to the PROM and must be transferred along with the
PROM.
1.
Disconnect battery ground cable.
2.
Then disconnect two computer electrical connectors.
3.
Remove computer mounting hardware.
4.
Remove computer from passenger compartment.
5.
Reverse procedure to install.
