I know for sure that I'm running lean when I get on the go pedal. I can smell it badly now. I've had 2 Mustang owners and 1 Lightening owner tell me it too. So what do I need to do to fix it? New fuel pump and regulator? My injectors are good. All my sensors are new. The O2's are working also. I used a break out box and tested everything real well. Help me please!!!