O2 Sensor problem
#1
O2 Sensor problem
Engine light came on and said O2 sensors bad so changed all four,light still coming on back on but only when i come on to it.I have SLP exhaust,not sure what the problem is and we are all stumped!!
Last edited by BRADLS1; 09-23-2010 at 09:06 AM. Reason: please delete
#2
Did it say if it was the primary or secondary (post-cat) oxy sensors? If the error is showing a post-cat sensor, then the problem could be with a bad cat converter.
Btw, this post is in the wrong section, you want the 4th gen section.
Btw, this post is in the wrong section, you want the 4th gen section.
#7
there are 4 of them that i changed on the exhaust itself.
#8
Its the sensors on the exhaust itself not on the cats,thinking it may be a bad ground?
#10
You have two oxy sensors before the cats, and two after the cats. The two after monitor the cats to make sure they're performing as they're supposed to. If not, it will trip a code and the check engine light will go on. Those two sensors don't alter engine runnability like the pre-cat ones will. That's why you need to see which error code you get, it will specify which sensor(s) it is.
Last edited by Camaro 69; 09-23-2010 at 12:10 PM.