Check engine light on.
 

My check engine light is on sometimes when I come out to start the car in the morning but it goes out when I start the car. Anyone have such a problem? What can cause this?

When you turn the key to "on" (not start) ALL the warning lights come on. This is the lamp test feature that all cars have, so you can make sure all the warning lights are working. Then when you start the car they all go out (hopefully).

yes, all lights come on and then all go out when the engine starts. It is just that the check engine light will be on when I get into the car first thing in the morning. So far it has only been on cold mornings.

With the key out?

I had to read it twice, but seems like thats what he/she is saying.

Strange, since this is supposed to be "dead" when the switch is off... as far I know.

What year & model car??

89 300 te
 

the problem is not doing it now, really weird car. I would swear that there were ghosts in this thing...

89 300te check engine light
 

We had a drastic change in the weather the other day and the check engine light was on the next morning without the key in. I unhooked the battery, replaced the ovp relay and will re-chek in the morning when cold. The strange thing is the heater motor stopped working at the same time the ce light emerged.. I had been having trouble with it anyhow in that the thing would not stop blowing but would operate on high/low. Now it is not working at all, at any speed... Any Hints?

To me, this sounds like bad contacts in the ignition switch. Like you said there was a temperature change that coincided with this problem. Perhaps the contacts are still making contact when he pulls out the key, having the light on. I've also had similar problems with me heater and key. it was cold one morning, and I started the car with a stiff key it started and the starter dis engaged well, ut the key's electrical position was not yet making contact with the 'run' connection, and I had no fan or radio till I turned the key a bit more CCW.