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Both prior posts are correct...the code has nothing to do with any of the parts you have replaced, and everything to do with the Variable Valve timing. The TSB referred to states that if this code sets that the actuator (the gear on the intake cam) may be bad, and points you toward checking it. Without the proper equipment, you cannot adequately diagnose this problem. And without some real experience, you don't want to get into replacing that gear yourself. It is unlikely that any shop other than a dealership will be able to test the system properly to determine the problem. If the car has not had adequate oil changes over the years, it can also cause this problem and it will be very expensive to repair. Pretty much, it will be either the actuator, the oil control valve, or a problem with the system stopped up from lack of oil changes. Any way you cut it, I would suggest going to a dealer to have them check it out.

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RE:

How do you get rid the DTC error code P1349 on a Toyota. I have already replaced 3 sensors.?

I have also replaced it with a new gas cap. It is a 2000 Corolla. P1349 code on the Toyota is VVI System related. Sensors changed are master flow sensor, Air Fuel Sensor and Throttle pPosition Sensor.

Bank one is on the left side of the exhaust system. follow the exhaust manifold from the engine to just ahead of the Catalytic converter. You will see what looks like a spark plug installed in the exhaust pipe. Disconnect the electrical connection and unscrew the O2 sensor. Follow the installation instructions in the box. sometimes you get an O2 error reading when the sensor is OK, but the root cause is elsewhere

The P1349 is not a misfire code, it is a problem with the VVTi( variable valve timing) system, Toyota has issued a service bulletin regarding this code(TSB EG009-03) to correct this condition, have the dealer look it up, since I don't have one in front of me.

P1349 Toyota Rav4

In the OIL PAN there should be like a suction pipe that takes the oil to valve mechanism of the upper part of the engine , those pipes gets clogged during lifetime of your car, take off your Oil Pan & clean that suction pipe , filter, change oil & you should be good to go unless your engine is already seized up .

Easy Fix Toyota had many recalls & TSB's on those years , celicas, corolas ...

It either has a problem with the VVT (adjustable cam timing) ( or "variable valve timing") solenoid or there is a problem with the engine cam-crank (timing chain) connection.

The solenoid as I recall is right up front, and not that expensive.

Replace it and see what happens, common problem.