97 vette o2 sensors
I ordered hp tuners and the front 02 sensors
Iam under the assumption that you need at least the front 2 o2 sensors or the car stays in open loop witch makes it run rich. Idk how long he ran the car this way, but is there anything else I should check. Can running the car this way damage the motor?
Sorry for the long post and thanks for the help.

