93 coupe

I have a conversion where I used a PCM (blue and red) out of a 2003 2500HD 4wd 6.0, I had my harness worked and the O2 connector is a 4 pin flat male, the O2 sensor that I think is correct is the Bosh 13027 which also has the 4 pin flat male. Can anyone verify which O2 sensor is correct for bank 1 and 2 sensor 1? Thanks for the help.

ChopperDoc

Yes, that is the upstream sensor. It goes in position 1 on either bank.

clinebarger

If your harness is a flat 4 male.....You need a flat 4 Female O2 sensors like this,

ChopperDoc

Ah, yes, I must of over read the connector on the harness being a male too. Don't want any of that male on male action lol.

93 coupe

Thanks guys!