oxygen sensor...

Hi. I have a '91 Isuzu Trooper with about 197,000 miles on it. I just purchased it from a private party and need to have it smogged. The problem is the o2 light on the dash is on, even though we've changed the sensor. The guy at the smog station wants to charge me 3 hours labor at $79 per hour to get the light to turn off before it will pass. Is there some way I can get the light to turn off without having it hooked up to a code scanner? Any suggetions would be greatly appreciated...I'm running out of time on my temp tag!

Hi. I have a '91 Isuzu Trooper with about 197,000 miles on it. I just purchased it from a private party and need to have it smogged. The problem is the o2 light on the dash is on, even though we've changed the sensor. The guy at the smog station wants to charge me 3 hours labor at $79 per hour to get the light to turn off before it will pass. Is there some way I can get the light to turn off without having it hooked up to a code scanner? Any suggetions would be greatly appreciated...I'm running out of time on my temp tag!
Look here (http://www.4x4wire.com/forums/showflat.php?Cat=&Board=UBB86&Number=243524&Forum=CatSearch-15&Words=O2%20sensor%20light%20&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=allposts&Main=243524&Search=true#Post243524) and here (http://forum.planetisuzoo.com/viewtopic.php?t=668&highlight=sensor+light) .:smokin:

take the dash apart and remove the small light bulb that luminates the "O2"

Hey, Steve. Thanks so much for the links...they led me in the right direction. In my case, there was a little switch on the back of the speedo...Victory! Thanks again, -Amanda