1999 yaris oxygen sensors

[jblomster]

Hi! I got the check engine light with error codes P0130 (o2 sensor circuit bank1 sensor 1) and P0133 (o2 sensor slow response) So I would like to test the sensor and perhaps change it.

However, I haven't found any good info on my models engine and oxygen sensors so I'm a bit unsure where it is located. What confuses me is that most of what I found mentiones two pre- catalytic converter sensors (sensor 1) But I belive my car only has one sensor 1 and one sensor 2. Is this correct?

My VIN is JTDKV123703021353 and looking at this site: http://www.toyodiy.com/parts/q?vin=jtdkv123703021353,
my engine is model 1SZFE.

Any help is really appreciated, as well as tips on where/how I can find more information on this.

Thanks!

[ricardocanedo621]

https://www.youtube.com/watch?v=c-MFkYZYD4w

[jblomster]

Thanks for the link! I looked at that video but that is the sensor 2, after the catalytic converter. I (think I) found that sensor, but I'm a bit unsure if the other sensor I've found is the sensor 1 bank 1 or if there is another one hidden somewhere :-)

[ricardocanedo621]

The front oxygen sensor one is in the engine bay by the exhaust manifold towards the right side.
http://static.baza.farpost.ru/v/1415267914034_bulletin

[ricardocanedo621]

It looks like you have to remove the heat shield for the exhaust manifold.

[ricardocanedo621]

http://i61.tinypic.com/bdl5ok.png

[jblomster]

Thanks for the pics! Here's how mine looks, I guess I don't have a heat shield? Anyway, It's not that hard to get to that sensor, though it is stuck really good so I'm gonna soak it in wd-40 for a day.

http://i.imgur.com/squkkFJ.jpg

Also after searching the web a bit, I think this engine is a 4 cylinder single manifold motor? And that means there is only one sensor 1 and one sensor 2. (no sensor 1 bank 2) (Sorry I'm a total beginner on this car engine stuff :-) )