fastnfurious14

My car is running very lean it is burning lot of gas you can smell it on start up. Terrible gas mileage. I've been driving around for a year with the following codes:

84-1- Sensor Logic Failure

83-1- Engine control module, powertrain control module

Does anybody know what they mean? they come up under the abs ! section of the codes. Please chime in on any ideas

Thanks