Question about 2000 Toyota Camry
The egr valve on that motor has a egr positioning sensor mounted on top. The sensor goes bad and the ecu can't determine the how far the valve is opening so it opens it too much. This causes surging of the engine under light throttle application. Also as stated above the egr can stick causing rough idle. Either way if you get the valve from the dealer it will come with the sensor solving both your problems.
Posted on Apr 19, 2009
Its either your egr valve, the egr vsv, or the vacuum modaultor, you will need a vacuum gauge and a scanner to test which you need.
Posted on Apr 17, 2009
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