Hello
I noticed that the S13 run a single wire O2 sensor , meaning it doesn't read the air/fuel levels til its warmed up.

Would there be any benefit in running a Heated O2 sensor, like the S14's?

Thanks in advance

 

Computer isn't programed to use it, but you may be able to hardwire it in....no big deal, it takes like 5 minutes to reach 650*F. Just makes fuel ratio better sooner. Car starts in Open loop, which basically means it guesses how much fuel to add (adds a little more than needed [rich] just to be safe). When it reaches 650*F it switches over to reading the voltage output from the O2 sensor and tells the ECU to either add fuel or take it away. The advantages of the HO2's aren't worth the trouble. Hope that helped

 

Perfect!

Thanks!