Does anyone have a dissasembly started for MY 2002 PCM 1220411 with OS 1221256 ? Or can someone run one through so we could start?

This would cover all 1220411 possibilities including the Vortec Engine as well as LS engines.

We have one for MY 2001 PCM 1220411 OS 12202088 . This one does not handle the Vortec Conversion and is not as good as above.
http://www.gearhead-efi.com/Fuel-Inj...S1-PCM-Project!