Problems with P0423 Heated Catalyst Efficiency Below Threshold (Bank 1)

Jorgechon

New member
I recently had a P0433 problem my mechanic had the oxygen sensor changed from the passanger side. Now couple of days later i have a P0423 Heated Catalyst Efficiency Below Threshold (Bank 1).... and he tells me to change the oxygen sensor in the drivers side.

Why didnt i get both obd2 codes at the same time if both were supposed to not be working properly!!
Do you really think that the sensors are the problem??

I drive a 4R 2003 sport edition V6. 4.0.
The dash board tells me that im doing a lousy 11.5 mpg!!

anyone help!!
 
Register to hide this ad

Members online

No members online now.

Forum statistics

Threads
278,309
Messages
3,554,071
Members
248,016
Latest member
Advally Service

Trending content

Back
Top