vltndennis
Member
- :
- 03 Mazda Protege5
Whats up guys , my p5 is throwing a P2009 and a P0421 code. The 0421 code from all the info i've gathered on the net tells me that its the pre-cat but what are my options? just get a replacement or by getting a header will i still have the MIL ? still not sure about the 2008 code