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98 Camry V6 XLE - Oxygen Sensor Problem (Code:P0135)
I had my check engine light on. When I got it checked @ autozone it popped up an error code P0135 saying " malfunction exists in the heater circuit for oxygen sensor 1 in bank 1"
Explanation: The computer has recognized a failure in this circuit. Probable causes are:
1.Oxygen sensor defective
2.Poor connection at oxygen sensor
I believe that the oxygen sensor is defective and I need to replace it. I have been driving with this condition for almost 10 months. Will this affect my engine badly.
Please guide as to what sensor to use and how to replace. When I see the parts in autozone online I get 2 brands Bosch and Denso. Sometimes it says "2 required one at each exhaust manifold" and sometimes it says nothing as in the case of Denso.
How many sensors I need to replace actually? And please guide me as to how to replace it. I mean I wont do it myself. I will take it to a mechanic but I need to tell him where to look for. I've read the posts in the forum. They give directions. But how exactly? Has any got any pictures? And please, how many sensors I need to buy? 1 or 2?
Help is very much appreciated.