Hi,

I brought 2 brand new o2 sensors from SMP. SG274. Now I don't have any signal from the o2 sensors (they both stay at 450 mV) and I have connection between the connectors and the right pins at the pcm so I'm suspecting that somehing is wrong with the sensors.

The SMP sensors are like $20 each including shipping and thats probably whats makes me worried. Anyone running them? Anyone having had troubles with them? Anyone knows what the diffent wire colors represent? They come with the right plug and everything but maybe they are pinned wrong...

Thanks