update on exhaust issues... can anyone help?

[mn box s]

front? rear? or both?

[derb]

I currently have a similar issue- I have both P115 and P119. I bought new O2 sensors after my header install and both codes came up. I found a thread on another forum that said the resistance on the two heating wires should be between 1.8 and 2.5 ohms. My new ones were 3.4. The old ones were 2.5. I contacted the manufacturer (SNG) and they said my new ones were defective. I returned them but have not purchased another set yet.
Might be worth it to check the two white wires on both sides.
Good luck.

[mn box s]

I don't want to rule that out entirely, mine are Bosche exact replacements oem. I want to say that its probably not my problem. How do I go about testing the resistance I have a expensive fluke that willm do the trick. Was this from your rears or your fronts??? my guess is its from my rears that are not in any pipe currently??? Can anyone else chime in???

[heyjae]

P1115 is the pre-cat, passenger side sensor. The fluke will work in testing resistance. O2 sensor heating code issues seem to be popular. I'm trying resolve mine too.