I guess this is a stupid question but my Pro 91 LX, the O2 sensor is in bad conditions and is burnig more fuel than normal and i wan't to know if i replace it for a newone i will feel a relevant diference? I guess it will gain a little more power and be a little bit more economy? I'm doing 25 mpg in city. What do you think guys?

 

You could actually lose power. Economy mixutre is closer to lean, Power mixture is closer to rich. You won't really notice the difference on a stock motor, though.


25 mpg city is where you should be. Are you getting ~ 28-34 highway?

I MAY be able to give you my O2 sensor once I get my sim in, no charge except shipping

 

That's great, thanks! In highway I'm getting 31 mpg.