TOYOTA P CODES (POWERTRAIN) P0400 - P0499 P0420

My Check Engine Light Came On With The Code Of Po420. Yesterday I Got The Flex Pipe, Extension Pipe, Resonator, Axle Pipe, Muffler And...

Hi My Name Is Henry. Ok Ive Changed The Cat Converter About 2 Years Ago Bought Brand New From Dealer. About 60,000 Miles On Cat. And The...

I Have A 2003 Matrix That Is Showing The Check Engine Light; Code Check By Dealer [po420] Specifically Points To The Catalytic Converter [$...

I Own A 2001 Toyota Sienna Xle Van. The Other Day I Backed My Van Up And I Must Have Backed Into A Snowbank, And I Believe I Got Snow In My...

Engine Problem 2003 Toyota Corolla 4 Cyl Wheel Drive Type Unknown Automatic 88400 Miles I Had A Diagnostic Test Done At Autozone...

Hello Everyone, I Scanned My Car And The Error Code Is P0420. The Catalytic Converter Has Been Changed. The The Manifold Was Cut Open And...

Engine Performance Problem 2002 Toyota Camry 4 Cylinder Two Wheel Drive Automatic 94,000 Miles. My Car Was Running Good I Went To Good...

I Have Replaced All The Cat's (3) And The Same Code Still Comes Up. I Will Be Checking For Leaks, But I Dont Think That Is It. Took It To...

I Have P0420, And The Original Ecm. If I Were To Go To A Junkyard Or Pick N Pull, How Would I Know If The Used Ecm Was One Of The Ones...

P0420 Cayalyst Bank1 Is The Culprit, After 3 Attempts To Clear This Issue It Still Remains, 1. Replaced Vsv, 2. Replaced Egr, 3 Replaced...