91 O2 sensor work in a 90?

[SnowBird]

I didnt know that 90 and a 91 sensor were different, I guess it has to al do with the ECU or something. Does anyone know if in fact I can run a 91? They are cheaper and easier to find.

 

[fwdmaster]

It's the same, I am using an 90 o2 sensor off my 90 laser on my 92 laser works fine

 

[1992awdlaser]

Yeah, they are both the same. For something like this just check the part number for each on Advance's site to see if they are the same.