[moore_rb]

Hi Joe-

If the fuel injection return line was capped off correctly, then it should be ok to leave it. however, if he disconnected it at both ends and left the line open, then that could definitely be the source of the odor.

Another thing to check is your gas cap- make sure the rubber is good, and that it is sealing tightly. If you have a screw-in style vented cap, then make sure the spring isn't stuck open.

Dan's idea about checking the top of the tank is a good one - the filler neck, the gauge sender, and a small pressure vent are all located up there - any one of them could be weeping a small amount from the gasket, and it only takes about 1/2 teaspoon of gasoline to stink up the whole garage...