My check engine light recently came on in my '01 Toyota Rav-4 (107,000 miles). I took it to Autozone and the error code was P1135 - Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1). It also said that the probable cause was either (1) Open or Short Circuit Condition, or (2) Poor electrical connection.
I've looked at a lot of forums online, and I guess this has something to do with the upstream O2 sensor, on the firewall side of the left exhaust manifold.
What I'm really asking here is, Is this a serious problem? Is it something I need to get fixed right away? See, because of my present circumstances, I don't have any expendable income for the next three months. If it's a repair job costing more than $20, I simply can't fix it. Will my car be destroyed?
Thanks in advance for any responses!
Monday, October 22nd, 2018 AT 7:08 PM