malam Posted September 21, 2005 Share Posted September 21, 2005 Hi All, I was getting a P0171 error, (rx300 - 2000) which got fixed by replacing the A/F ration sensor. As soon as it was fixed my mechanic saw P0330 code (knock Sensor Malfunction). Now the truck doesnot go in overdrive $ 40 mph. Can anyone suggest if the knock sensors have gone bad? and if there is a solution to it? How much would it cost to replace or repair such a problem? Thanks Al Quote Link to comment Share on other sites More sharing options...
wwest Posted September 21, 2005 Share Posted September 21, 2005 The knock sensor could had been bad all along but could not be "uncovered", detected by the ECU, siince the failing oxygen sensor "shadowed" it. A/F ratio sensor is the oxygen sensor before the catalyst vs the one after. Quote Link to comment Share on other sites More sharing options...
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