Hi Guys, This video will show you how to replace a bad catalytic converter (P0421 fix) and the steps involved in replacing it. Thank you for watch and please subscribe.
"Efficiency below threshold" catalytic converter blockage
Tools Needed
O2 sensor socket
12 MM socket
14 MM Socket
12 & 14 MM wrench
19 MM socket
Torque ratchet
Various ratchet extension
Hand razor blade for cleaning
Brake cleaner for cleaning
Soft brass brush
Shop rags
Gloves
Safety glasses
Jack stands, floor jack, and chocks for blocking the rear wheels
Parts Needed
1. Catalytic converter (I used, original, Part #)
Below items are included in the
I. New nuts
II. Exhaust manifold gasket
III. Flange gasket
IV. Inner and outer nuts for the exhaust manifold.
(Remember to install new or old washers)
