Can you chip a PR3 to disable BOTH o2 sensors? Will it hurt performance in anyway?

 

Yes you can. It prolly will in some way, since working components are better than no components, but hard to say how it'll affect it.

 

O2 sensors are one of the most important sensors on the car. Air/fuel ratios can not be guestimated for all driving conditions. Now if you drive your car full throttle all the time like an on/off switch then you might be able to disable them, but we don't.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thesmogman &raquo;</TD></TR><TR><TD CLASS="quote">O2 sensors are one of the most important sensors on the car. Air/fuel ratios can not be guestimated for all driving conditions. Now if you drive your car full throttle all the time like an on/off switch then you might be able to disable them, but we don't.

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I disabled mine, and it runs better than any O2 equipped car I've driven. And the stock narrowband sensors aren't quite as important as you think, they're very limited in their ability to sense air/fuel ratios. Imagine a coolant sensor that could only tell if the car was hotter or colder than 180*, but not by how much. Sort of shitty...

To just diable the sensors is trouble, but if you disable them and tune the ecu properly to give the desired air/fuel ratios at all efficiency points, you've gone far above what any narrowband could hope to achieve.

 

Disco, you're new avatar is t3h sux0r.