01-18-2013, 07:33 PM
Join Date: Apr 2011
Location: Reno, NV
check all your exhaust flange bolts to ensure they are tight..... also check to see if your downpipe is loose at all by crawling under and wiggling it left and right. You will know if its at all loose by wiggling it.
If all that is fine..... you indeed may have a bad cat on the downpipe.... OR.... you could have an 02 sensor that is not reading correctly and throwing this code. I know I said O2's have their own code earlier... and they do... this is just a possibility.
If you have access to a scanner that can monitor O2's.... make sure they are cycling every 2-3 seconds. A slow reading O2 could be an issue.
~Todd~ 2004 X 4.0 5 speed---SOLD
4" Lift, 4.56's, 33" Duratracs on M/T Classics
RR SYE, Tatton CV, MML, BL, TT, Dynomax Exhaust
Hella Lighting: Driving, Fogs and H4 E-Codes
... and NEVER will be