Originally posted by bigMoneyRacing:
I thought Bank 1 was the firewall side.




Yes bank 1 is the firewall side, but the question was which O2 sensor do I buy, square or round connector?

As you can't see the bank 1 O2 connector I thought it might be easier to look at the bank 2 sensor
to see if it was square or round.

1996 2.5LT V6 Contour ATX My Tour+help/info pics E0 rims, Gutted Pre-Cats,CTA Custom Exhaust & Intake, Diablo Chip.