Contour Enthusiasts Group Archives Forums Modifications 3.0L Duratec The 3L is up and running!

I still don't see why you would be running that lean. Every 3L I've built runs perfect on the 19lb injectors. The ones I had dyno tuned had the air/fuel spot on before the tune. I'd check for a vacuum leak as with the codes for both banks lean it sounds like a vacuum leak before the intake manifold. Check the intake with carb cleaner or starter fluid to see if the car revs up.