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p0333 cel knock check

  1. 1Gen-Tundra
    Hi, CEL came on and code read P0333 Knock Sensor Bank 2. Tightened Gas cap, however noticed that I am now running at a higher RPM than normal, 3000 @ 65mph (normal is 2100 @ 65mph). Dealer wants $500 + to replace sensor. Could the engine go into "safe mode"- retard timing due to a loose cap...
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