I just installed an Active Autowerks supercharger (which included new injectors) in my 98 M3.
At first the car was very hard to start, and ran really rough. I double checked everything and it looked good. As a last resort I added 4 gallons of Chevron gas to the tank and it fired right up and ran great. I let it sit overnight and it wouldn't start. Add another gallon of gas and it runs great. Let it sit overnight again and the same thing, no start but runs great after adding another gallon.
Any Ideas?