open / closed loop???

[leprecaun96]

Anyone know if the rear o2 sensor after the cat, is included in the engine control loop?ie, if its removed when fitting a decat pipe will it screw with anything?Is there any mod on the wire ends to be done?Questions questions lots and lots...

[supreamS14]

I had to remove my 2nd o2 sensor as its not used in my s13 sr swap in my s14.So I only had 2 use the 1 on the turbo outlet. I installed the other o2 sensor to find out theres no wiring for it. 1 called a shop that does these swaps and their answer was 2 only use the o2 sensor on the turbo outlet.

[supreamS14]

I just saw that your in Ireland so you probely have a s14 200sx with an s14 sr20det stock . So I cant relly comment on anything about s14 sr's . anyway are your cars Right hand drive or LHD?

[leprecaun96]

Hi,ok, i kinda figured as much seen as everyone just seems to rip it out and not say any details of how they did it.Yeah i'm in Ireland, the originals were never sold here so all we have are grey imports, i personally got mine from japan so it had lots of little tasty extras thrown in

[auto alchemist]

you shouldnt have to worry too much, i think on just about all cars the rear o2 sensor is just to make sure your catalytic converter is working and isnt used for engine control

but some cars go into "limp" mode if a check engine light appears so you might want to make sure your car doesnt have that (sorry but i dont know much about later model SR's)

[supreamS14]

So you have a RHD silvia ? Thats sweet ! It sucks us americans get the gay 240sx with the ka24de truck motor instead of a sweet silvia!