EdmondsXLT
Member
- Joined
- April 16, 2018
- Messages
- 21
- Reaction score
- 1
- City, State
- Edmonds, WA
- Year, Model & Trim Level
- 2003 Explorer XLT 4.0 AWD
Well I'm getting the dreaded P0430 code with the "Check engine soon" light. It's an '03 XLT with the 4.0 V6, 174k miles. I recently replaced the intake manifold gaskets and valve cover gasket to fix a bad oil leak on the bank 2 side. Also replaced both the upstream and downstream O2 sensors but the light has come back on. Any thoughts that don't involve replacing the cats? Has anybody any luck with Cataclean?