Have a look at this American site for ideas..
www.p0420.com/
In the comments at the bottom of the page, #22, headed '2001 Toyota Corolla', 'Sam' says that he got the P0420 code, filled up with Shell V-Power and the light went out within a week! Anyway, there's some useful info in there. Some of these American posters say that they got the fault code after changing the 'header'. What the Hecky Thump is a 'header'? Have I got a header? Or am I one?
I like this one...
www.youtube.com/watch?v=5icTmYItwiE
Edited by MrEckerslikefromRamsbottom on 15/07/2012 at 15:27
|