Problem solved. The idiot in question ( me ) fixed it. New gas cap and clear the codes = no stalling and no cel. OBD II sucks .... Guess I'll need to invest in a code reader too someday.

98 Mystique GS V6 - K&N, projectors 91 Mustang LX 5.0L 00 Jetta TDI, Yay, I bought it !! 95 VW Getta TD - RIP: Nov.3,2005