Tundra with CEL how do I resolve this issue

2001 TOYOTA TUNDRA
190,000 MILES
Avatar
ASHLEY29666
  • MEMBER
  • 2 POSTS
I have scanned my truck and I Have a P0420 and P0420 pd? What do each of these codes mean? I was told it has something to do with gasses in my catalytic converter. How can I fix this and get rid of this code?
Sep 5, 2011 at 7:12 PM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
P0420: Catalyst System Efficiency Below Threshold (Bank 1)

Could be the Cat itself, O2 sensor/s, could be the coolant temperature sensor/s , retarded ignition timing, leaky exhaust manifold and the list goes on-
Sep 5, 2011 at 7:21 PM
Avatar
CJ MEDEVAC
  • CERTIFIED EXPERT
  • 11,004 POSTS
Raz,

Would that code put the vehicle into closed loop, and MPG suffer?

The Medic

Sep 26, 2011 at 12:29 AM
Advertisement