Is there a simple and fool proof way to locate which "side" of the engine Bank1 or Bank2 is on, with reference to OBDII data?
For example, you read ODBII live data and find that Bank2 Sensor2 (downstream) O2 sensor is not stable, but Bank1 Sensor2 is (duel exhaust vehicle). How can I determine for sure that the CAT on the left exhaust is bad or visa-versa?
Note this is not a question about checking the CAT (pressure test, temperature test, etc). This is about figuring out - by just looking in the car engine bay (?) which side is bank1 and which is bank2. Is this possible?