SPONSORED LINKS

Check engine

Tiny
CANADABOY84
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 250,000 MILES
I replaced all 4 of the O2 sensors on my truck a week ago and this afternoon while I was driving home the check engine light came on and through the p0430 engine code what would cause this issue with new o2's
Sunday, January 24th, 2016 AT 11:42 AM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
You mean you really didn't have 4 defective 0/2 sensor? What a shock.

The code means you have a bad Catalytic Converter on bank 2, not bad 0/2s
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, January 24th, 2016 AT 11:49 AM
Tiny
CANADABOY84
  • MEMBER
  • 1 POST
So the cat itself needs to be replaced? Is it better to use a aftermarket or oe replacement
Was this
answer
helpful?
Yes
No
Sunday, January 24th, 2016 AT 11:53 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
You can use an aftermarket but make sure it's an OBD2 Cat. Let the exhaust shop do it for you. They do a better job than you ever could and they may actually be cheaper.
Was this
answer
helpful?
Yes
No
Sunday, January 24th, 2016 AT 11:54 AM

Please login or register to post a reply.

Related Oxygen Sensor Content

Oxygen Sensor
GUIDE
Oxygen Sensor
Oxygen sensors are made of reactive materials which limits their lifespan. Aside from mechanical failures such as shorted heating elements or physical damage, these sensors...
VIEW MORE

Sponsored links