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4runner P0420. If any other codes are present they should be addressed first. REPAIRS ALREADY COMPLETED Catalytic converters two for this model - new Oxygen Sensor - new Fuel Filter - new Battery - new All repairs completed within past 2 months with same check engine message remaining. A P0420 Code means that the engine control unit recognizes that the catalytic converters efficiency is below the threshold. I have a 2000 toyota 4runner and I am getting a p0420 code.
But Im also getting some DTC codes that Im trying to fix. Top Causes of P0420 in the Toyota 4Runner Oxygen Sensor The P0420 codes is thrown when the oxygen sensors on both sides of the exhaust have very similar. We use cookies to give you the best possible experience on our website. P0420 Toyota 4Runner. I have a 2000 toyota 4runner and I am getting a p0420 code. Ive had the code for over a year.
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Ive had the code for over a year. 22102014 toyota 4runner engine type code P0440 P0420 and P0446 these codes bilain with this part but some time P0440 large leak. Anytime a P0420 code pops up the last thing I suspect is a bad rear sensor. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. There arent usually any drivability issues associated with P0430. Im trying to do most of the work myself since money is tight.