I am having trouble when turning my car off. After turning the key completely off my car still idles for a few seconds, my spedometer goes up to about 80mph, and my tach says it is at about 2,000 rpm. The Check Gauges light and Check Engine Soon light and warning noice comes on to momentarily. Just recently i had to replace my radiator because my fans didn't come on and my car overheated. Therefore, i have replaced my radiator, thermostat, and coolant temperaturem sensor. I, also, had my fans wired to run all the time. This is where the problem is i think. I have a wire ran from my fan relay to a hot fuse. i took this wire out and the car ran just fine. i had no problem exept my fans would not run at all. I let the temperature get up to 210 degrees and the fans never kicked on. I switched the fan relay with the fog light relay and the fog lights still worked but the fans still did not! I am at a loss right now! Does anyone have any advise? Any help would be greatly appreciated!

 

did you check the fuse for the fans?

 

210° is not high enough to turn the fans on. They don't come on until 226° with stock programming. Hope you did no permanent damage with your "creative wiring". I would not do that again.
Some testing info here.