engine light On, code po456
OK , you have a code that might mean you have an emissions problem . So what do you plan to do about it ?
I would check your fuel cap first.
Hyundai Sonata P0456: EVAP System – Small Leak | Drivetrain Resource (700r4transmissionhq.com)
Diagnose and repair the leak, thanks to your detailed guidance on evaporative emission repairs.
1 Like