you can alter primary o2 sensor sig but you cant alter the secondary...secondary is a pulse sig and not to mention anyone using a boomslang harness only has one wire going to an o2 sensor and thats the primary o2 sig.

currently i dont have the p0420 code and not using antifoulers, the reason i dont have a code for that is the fact im not running a primary o2 sensor at the moment. I assume the code for not having the primary supperceeds the other codes i should be getting and doesnt show up on my scangauge. with a better scanner it should show as a pending or something to that nature.

 

chris the secondary o2 throws that code when its reading is not differing from that of the front o2...


the secondary o2 is tought to read cleaner leaner air than the primary

 

Ok, so i'm running the boomslang harness, which if i understand correctly means that I'll have to try an anti-fouler method. right?

 

good possibility

 

in anycase you still dont have direct controlle over the secondary o2 sensor...it would be cool if we did though

 

that would be correct.

 

which antifouler do you use with a stock s pipe. i have the megan header also and my cel is on and i need to shut it down!! plz help