RYU

I'm replacing the O2's on my LS1. I bought two of the generic 4 wire Bosch sensors (the ones that are cheaper because you wire them yourself). I've used this solution on other cars before without any problems even though the wiring instructions are always a little cryptic.

I have a problem with the O2 harness wiring coming out of the LS1 harness. It has 4 wires; Lt Brown, Pink, Purple, Black. This doesn't match up in their wiring diagram at all. There's no mention of a Pink wire reference.

On some off chance someone has run into this problem before... Can you help me???

I'll check again tonight, maybe Autozone gave me the wrong part but my local guys are pretty good.

crainholio

iTrader: (2)

Bosch sells direct plug-in unit, no soldering or pinning required...but I don't recommend it or any other aftermarket O2 sensor with the stock Delphi PCM.

Do a search in the PCM/Tuning section to see examples.

I'd return the ones you bought and get Delco units.