O2 sensor problems : Toyota camry

NYSpeed Automotive
1

2000 Toyota Camry, 4 cylinder, California emmisions car.

The 2nd bank (by the cat) 02 sensor (pre cat) seems to not be showing up on my friends scanner at all. Car throws a check engine light. Code is something to do with a failed emmisions component.

Called toyota, has 2 kinda of 02 sensors. An A/F one (as they call it) and a regular one.

Guy at toyota doesn’t know which one to put in. (even with vin)

Which one goes in there? (Pre cat, right by cat)

2

i woudl say since its a CA Emissions car i would say A/F one

3

Ca car, pre cat should be the A/f one as that is the one that controls the fuel mixture for the motor. The “regular” one should be there to just check that the cat is functioning properly

4

Why would not “register” on the scan tool?

5

cheap scan tool??

have you tried more than one scan tool

also i just noticed, how can a 4 cylinder have a second bank