P0135 2000 Toyota Camry -

Question

TOYOTA CAMRY 2000 V6. Engine symbol don't disappear. took car to autozone, O'reilly & advance auto parts. They checked with engine check meter and told me that the upstream
bank-1 sensor-1 is faulty. It was replaced with new one, but without result.
Is there any connection with the engine gasket,as I was told by a mechanic about air leak
because of damaged gasket.
Is there any way to find out the specific cause connected with engine symbol?

Answer 1

HI there

If you have exhaust or intake manifold gaskets before the O2 sensor it can cause codes because the sensor isn't reading properly.