On the firewall in the engine compartment to the left (inboard) and below the brake master cylinder is a large connector with many wires. The connector is secured by two 10mm bolts. This is the connector to the PCM.
i do not remember how the PCM comes out after that but it is very obvious.
Carefully follow the instructions for installing the Hydra onto the PCM circuit board. The contacts are usually coated in a plastic that needs to be very carefully scrapped to make sure there is good contact.
__________________
Ray
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV High Top, Custom Walk Through, Lots of stuff added. www.BlingMyRig.com