I know there is another similar topic going around and I have searched the site to find a solution. My service engine soon light comes on after about 1 minute after starting, fans too of coarse. Stays on until I turn car off where it repeats the above cycle. Seems to run fine no loss of power whatsoever. Live in Ca where auto zone can't do free check.

When I get home I will check the fuse as the other thread said. Other cars in this forum have had similar probs but seem to react a bit different than mine. Any ideas?? opti, o2 sensors, egr,? Thanks in advance!

 

Opti is always a big seller when it comes to troubleshooting

 

Since you have a 1993, you don't need anyone or anything to pull trouble codes from your car except a paper clip.

Pull your own codes

 

Thanks Shoebox I'll give that a try and see what I come up with.

 

Fixed it. Turned out to be a fuse. Check the small stuff before you spend money on an opti, air pump, o2 sensors. Thanks for all the help.