[boosted18]

I'm hooking up a A/F gauge n it says to wire it into my 02 sensor or ecu. Their are 4 wires on the o2 sensor 1 black n 1 gray n 2 white. Which one of the white ones do I splice into? Also is it the 02 after the cat?

 

[ekaz]

Get a wideband sensor and another bung welded into the exhaust, before the cat and driver side.

 

[silver06hemic]

Yep listen to ekaz... you want a wideband for sure... you will get readings all over the board otherwise... maybe the odd correct one but definitely for a boosted setup you want a wideband...