drm5427 Posted January 6, 2010 Share Posted January 6, 2010 Just wondering if anyone can enlighten me on this subject. I had the check engine light come on about a year and a half ago when I bought my 2001 RX 300, and my mechanic had ran a fuel cleaner and cleaned the sensor. The check engine light came on about 4 days ago after I had removed the air filter box to clean the tips of the speed sensors as had been mentioned in a previous topic. I'm wondering if the sensor has finally gone bad, or would possibly cleaning it again fix the issue? Also, could I have loosened a hose somewhere when I removed the air filter and put it back on? I appreciate the help. Thanks, Daryl Quote Link to comment Share on other sites More sharing options...
joe913 Posted January 6, 2010 Share Posted January 6, 2010 There is a vacuum hose on the back of the air cleaner housing that, if not connected, will give you a sensor error. Good Luck. Quote Link to comment Share on other sites More sharing options...
drm5427 Posted January 7, 2010 Author Share Posted January 7, 2010 There is a vacuum hose on the back of the air cleaner housing that, if not connected, will give you a sensor error. Good Luck. This is the one that has a screw that secures it to the air cleaner housing, correct? Quote Link to comment Share on other sites More sharing options...
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