Hyundai Forums banner
1 - 4 of 4 Posts

·
Registered
Joined
·
17,552 Posts
Unless you have emission test for licence plates,, drive it till wheels fall off,, otherwise you into (2) exhaust manifold
 

·
Registered
Joined
·
206 Posts
Which O2 sensors did you change? Post CAT or pre CAT. They may have been reading perfectly fine which I think is the case. Those codes are Cat efficiency codes not sensor codes. Do you have a scanner that reads fuel trims? If they are good(under 12%) your pre cats are probably worn out. If your fuel trims are out of wack something with the tune is probably causing it.
 
1 - 4 of 4 Posts
Top