[dougiewest]

Hi I have a 2003 rx 300 I took the car for a oil change and filled up the tank with 83 gas in stead of 93 gas 2 days later im driving the car and the vsc light come on and the check engine light comes on I read the code and getting bank 1 sensor 1 and heater circuit malfunction bank 1 sensor 1 could this be friom the bad gas? the car runs fine and since then i filled it up with the right gas more thasn 3 tanks light is still on and is the sensor for bank 1 sensor 1 the first sensor before the cat by the header?