chi123

iTrader: (12)

Got a CEL that points to my cats going bad but before I replace those, I'm going to replace my O2 sensor to see if it could be that. My only question is which side is bank 2 on the 2IS? I hear bank 2 is always the passenger side but I've heard otherwise.

Jeff Lange

iTrader: (1)

Bank 1 is the bank with the cylinder towards the front of the engine. Bank 2 is obviously the other side.

For Toyota V6 engines, bank 1 is the RH bank, which in a longitudinally mounted car like the ISx50, that is the passenger side.

Bank 1 = passenger side (RH)
Bank 2 = driver side (LH)

NOTE: For Toyota V8 engines, bank 1 is the LH bank, so for the IS F, that is the driver's side.

Jeff

MashinA

iTrader: (20)

Where can we buy these? i have the same issue.

chi123

iTrader: (12)

I found this on eBay. Looks like a direct fit and from Denso.

chi123

iTrader: (12)

Thanks for the info!

maximL

iTrader: (2)

make sure the sensor is plug and play and not one that requires splicing wires.

MashinA

iTrader: (20)

would this work?
http://www.ebay.com/itm/Left-O2-Sens...ht_2805wt_1397

chi123

iTrader: (12)

Forgot to post the link in my last post lol. This is what I found. http://cgi.ebay.com/ws/eBayISAPI.dll...m=150699483676

DonMerdjan

According to this official document:

• IS 250 2006-2010; IS250C 2010 are with Engine model number 4GR-FSE. First Cylinder is on the passenger side, therefore Bank 1 is on the passenger side; Bank 2 is on driver side!
• IS 350 2006-2010; IS350C 2020 are with Engine model number 2GR-FSE. Same as above
• IS F 2008-2010; has Engine model number 2UR-GSE. This is a V8 and First Cylinder is on Driver side, therefore Bank 1 is on driver side. Bank 2 is on passenger side.

Hope this helps

VIETKIDD6

Which side is b1 on a 2015 IS250 ?