2009 vibe with code p0136 (o2 sensor?)

[Canuck_2005]

Hello,Looking for some guidance. I have a 2009 Vibe 1.8l automatic and it is throwing the code p0136 . The car has 105,000 km and from what I gather from my local dealership this code is not under the 160,000km warranty.Can anyone tell me with any certainty that this code is for the rear sensor?Thanks,

[star_deceiver]

So far all the Toyota forums and related searches have come back with the downstream (2nd) O2 sensor. An NTK downstream o2 sensor (NTK part number 24649) seems to be retailing online for between $100 and $115. Call the dealer parts office, the Toyota part dept. and various auto part stores to see what the generic brand might cost.You might try to get it covered under the 8/130000kms emissions warranty since the downstream o2 sensors sole job is to see how well the cat is doing it's job. That may take some careful arguing...