check engine on.code p1166 present on 2002 Acura RSX

i have a 2002 rsx,check engine light is on.code p1166 present.i can clear code with scan tool nd as soon as vehicle is started the code sets

Asked by for the 2002 Acura RSX
P1166 is a AF sensor heater circuit is bad. Bank 1 Sensor 1
Follow these test procedures
http://www.acuraworld.com/forums/f27/trouble-code-p1166-85027/
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