P0420 is the catalyst efficiency code. The most common thing is the catalytic converter itself is no longer functioning properly. The other likely thing is the rear oxygen sensor is no longer working properly.
It's Catalyst system efficiency below threshold
code p 0446
Trouble code P0770 means:Shift solenoid E malfunction
Trouble Code P1705 means:NC2 revolution sensor circuit malfunction
what should i do for code Po441 for 1999 toyota camry?
what is a code 21 on 1993 Toyota Camry 4cyl
how do you reset anti theft on a 1994 toyota camry
The plug you are looking for is at the of the plastic shield that is just below steering column.
Code PO420 is catalytic converter efficiency low bank 1
Here's how to find the color code for your 1997 Toyota Camry: look on the edge of the door, it should be something like: C/TR: 4M9 /FB40 (for my car) The 4M9 is the color, the FB40 is the trim to see what is the actual color of 4M9, go to: http://www.toyotareference.com/#CA Cheers!
Speed wire color code of Toyota 2008 Camry
Post your code here.