View Single Post
02-06-2013, 10:39 AM
1993 legacy wagon
actually, being an ASE technician for the last 10 years, a p0420 IS a dead cat, 99.99% of the time. If your downstream O2 sensor is bad, then you get a p0139 B1S2 O2 slow response code pops up.
Last edited by mnstrmech; 02-06-2013 at
View Public Profile
Send a private message to mnstrmech
Find More Posts by mnstrmech