I'm having an issue with my 2006 Mazda 3 that neither I or my dad can seem to figure out so I thought I'd come on here to get some help and see if anyone has had the same problem with their Mazda. Recently my car has been throwing a code that says fuel too lean at idle bank 1. Aside from that, whenever I am driving to and from the Athens area, my car starts to shake violently. Keep in mind that I ride down 316 at 65-70mph. Could it have something to do with the engine code? I know that it's nothing to do with my tires cause as soon as I back off the gas, it stops completely. When I push on the gas it goes back to shaking again. If anyone has had the same problem and know what it could be, I'd really appreciate any help.

 

What's the actual code you are getting?

Are you 100% the shaking is from the engine & not the drivetrain?

I've seen inner CV joints fail & vibrate at highway speeds under load or acceleration.