LTX_Alex

2 months ago I was in dire need in passing smog. I didn't have the money to buy an o2 from Denso or a qulaity brand but I bought these cheap $15 "Herko" oxygen sensors from eBay just to pass smog. Just today I got the P0154 code. From 30-45 minutes of research I learned that the cheap o2 COULD be defective up to now. I guess the o2 isn't getting hot enough or just being "lazy" from I've read another thread.

Any ideas?

'99 Trans Am A4 330K miles

Thank You,
LTX_Alex