HMS, here are thethings that they do . My first o2 sensor still working. But for my 2nd o2, will my OBD-scanner are saying the circuit not functioning. My best bet is that they had somehow dislocate the 2nd o2. Anyhow, the 2nd O2 are not that important. You can have it discon.Basically the 2nd o2 just detect whether the emission that your cat giving out are according the the environemt spec. So here is what happen. should a 2nd O2 detect your engine are giving our a lot of unhealthy smoke, it will give signal to the ECU to be increase the air in. That way, you can get a cleaner air. Since I am not a good environmental ppl, I really don't care how poison my emission is. So F it.
As far as the CEL light, is still working. No probelm. I have my car scan by OBDII scanner and all are in good shape except the 2nd O2 sensor.
Deep,
Terror lar the person done the o2 for you. I tried disconnecting the 2nd o2, the CEL still light up. I oso know the function is just to tell you that your cat is not working nothing more. The 1st o2 is to determine the A/F ratio.
On the wrapping things.. well, I will say this, I didn't see much of a need to wrap it up. To be honest with you, hotbits extractor can not tahan too hot of temperature. I had mine wrap but after about 2month I decided to take it off
Ah bro, interested to get a new set of eibarch spring
1) You wouldn't get any signal at all.
2) THe CEL light will light on due to the uncorrect location of your 2nd O2 sensor. THis can be overcome by eyither discon the light at the panel or re locate the 2nd O2 to the correct position( this take time and testing).
This article was first published in December 1998. Since that time it has proved to be enormously...