Blacktop O2 Sensor Wiring

[MississaugaGTS]

Here's my problem....

I have a Silvertop engine running with a Blacktop ECU. Everything is working OK but I was looking at the wiring for the O2 sensor and found that on the Silvertop diagram the four wires to the sensor are as follows....

+B= Battery and +B on Check Connector
HT= Pin#14 on 26 Pin Connector
OX= Pin#6 on 16 Pin Connector and OX1 on Check Connector
OXL1= Pin#13 on 16 Pin Connector

These are fine except that I am using a Blacktop ECU. The Pin outs for it are as follows....

+B= Battery and +B on Check Connector
HT= Pin#8 on 26 Pin Connector
OX= Pin#6 on 16 Pin Connector
OXL1= ??????

Does anyone know where the OXL1 wire goes to on the Blacktop ECU?

[REN69]

Get a silvertop ECU, there's someone selling one from an auto ST on the for sale forum. probably save you a lot of time if you used that instead of the BT ECU.

You can always ask Ryan (kp61) but questions like this are not cheap.

[MississaugaGTS]

This setup has already been running for the last year and a half, but, it runs rich. So i decided to check the wiring of the O2 sensor as the info I have found seems a little vague.

Oh yeah, I don't get any error codes from the ECU either!

[REN69]

but you're still having O2 sensor problems though.