why CEL & VCS light goes on in a lexus rx300 2001?
Becomes on suddenly , car is in great conditions and all maintenance is updated.
I check at autozone and it have a p1135 code but they said is generic & they can't do no more.
P1135 Air/Fuel Sensor Heater Circuit Response. (Bank 1 Sensor 1) The sensor is in the passengers side exhaust manifold before the catalytic converter. It looks similar to a spark plug.
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