Scanner says P0420 Catalyst System Efficiency below Threshold (Bank 1) and P0430 Catalyst System Efficiency below Threshold (Bank 2).
Does this mean I need new cats?
Exhaust leak?
I'm taking my car to Alternative Auto Performance on Monday the 24th, is it possible the tune isn't correct and that's what's causing it?
Does this mean I need new cats?
Exhaust leak?
I'm taking my car to Alternative Auto Performance on Monday the 24th, is it possible the tune isn't correct and that's what's causing it?