ianc,
Thanks for the welcome. I'll take your advice and get the CIS pressure gauges. I see Pelican offers this Bosch unit:
Bosch CIS Tester
Use the same equipment that the factory techs use to dial in the fuel injection system. Comes complete with all the fittings, schematics and detailed instructions.
PEL-PP910450 Bosch CIS Tester $218.95
A little pricey. But is this the gauge apparatus I'll need?
Mike