Agree completely on the "smoke machine". But here's some new info that might help nail it down.

Changed the gas cap. Now, when I start the car, the economy needle stays to the left and moves when I rev the engine (like it's supposed to). When I put it in reverse, it works okay too. When I put it into drive and step on the gas, the needle pegs to the right and stays there although occasionally, if I put it in reverse, the needle will move to the right with pressure on the gas pedal and then return to peg/right. Is there a vacuum line to the tranny that could be causing this? Gonna have to find a garage with the smoke machine! Anyone know what it is actually called? Thanks again for all your help!

Stix