Geo

Auto Zone Parts Store will test your car for free. I was able to clear a code for the IAT sensor, temp sensor located on the air breather. Part only available through dealership for about $72.00. Dealership showed me on the parts breakdown diagrahm where to find it. Turned out the sensor was good, the wires going into the connector have been sheared off. Still trying to come up with a new connector, dealership doesn't support, discontinued! Disconnecting the neg battery lead cleared light once problem fixed.

ok first of all this is a very hard part to change. i would not recamend you try this unless you realy know what you are doing. first u need to get the car in the air' then remove the tires and the half shafes "drive lines" then drop the tranny by removing the blots around the bell housing. and any other linkeges. finealy remove the cluch off the fly weel in the bell housing and replace it. then all u need to do is adjust it and put it all back toget her. like i said it is not esay. i just got done doing my 92 geo storm it took about 1 day. the cluch u can get at any parts store for under $200 dollars. it would cost $800 to have it done by a mechanic so it is better to do it your self if u fell u can.

Sounds like it's simply a bad switch if you're talking about the normal headlights. If it's daytime running lights there is a "kill switch" in the handbrake that turns them on when the brake is released and off when the brake is activated.