SPONSORED LINKS

Replaced cat last year and rear O2 sensor check.

Tiny
ANONYMOUS
  • MEMBER
  • 2001 GMC SONOMA
  • 18,000 MILES
Replaced cat last year and rear o2 sensor check engine light came back on po430 cat below efficiency bank 1 replaced both o2 sensor check engine light came back on same code
Saturday, March 23rd, 2013 AT 9:30 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I bet you used an aftermarket cheap cat converter. Thats what happens with the aftermarkets. I refuse to use them as they do not contain enough precious metals to last. You need another one. See if they will warranty it for you and if they do be prepared for this again. Otherwise, do it right and get a factory cat which will be more money

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, March 23rd, 2013 AT 9:39 PM

Please login or register to post a reply.

Related Check Engine Light Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Check Engine Light
GUIDE
Check Engine Light
Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...
VIEW MORE

Sponsored links