Hi,
I've been getting poor fuel economy recently and have trying to figure out why. recently noticed that Bank 1, Sensor 1 shows no activity in Torque. No CEL is thrown.
I previously had codes thrown that related to the O2 sensor but disappeared on its own. I don't remember the exact code.
Does Bank 1, Sensor 1 showing no activity indicate a problem with the O2 sensor? TIA!