iits a 1988 CRX si with a SOCH ZC and its a single wire O2 just so you know
alrite im haveing a really hard time getting this damb 02 senser 2 work. i just installed a bran new NTK o2 sensor and my ECU is still throwing the code . iv check the grounds at the thermostat houseing. iv tryed fallowing the wire looking for breaks. but i dident wanna cut my harness all up so i dident go 2 far.

no matter what i do it still throws the code and y car wont switch to closed loop

 

I have responded to your other post and if I had seen this one I might not have responded. Just post in one forum please. Since you are new I won't yell.