Hi All,

My 96 Supra has had a check engine light on for the past year. When running the codes I get this:

P0135
Oxygen Sensor
Heater Bank 1
Sensor 1

Has anyone seen this before? I saw one other thread on this but it had no solution was from '13. I asked around and some said it was the O2 sensor and others said it could be the charcoal canister?