My 1992 Loyale's "CHECK ENGINE" light comes on after about 2-3 minutes of driving when the engine is cold. It then goes away a few minutes later. The light doesn't come on if the car is already warmed up. According to my wife, it has been acting this way for a few months now.

 

Anyways, when I was the light come on, I pulled the car over and turned it off. I turned the ignition 'on', and checked the ECU for codes.

 

The only code it's giving is 5. I get five short pulses, then a long space, then 5 short pulses, etc...

 

Any ideas?

If I remember correctly code 5 just refers to the type of transmission the car has.

Code 5 refers to Non California, Manual transmisson.

 

You need to put the ECU into read mode with the white connectors under the hood to get the stored codes out.

 

Being that it goes away after warmup - my check mark goes beside coolant temp sensor.

 

GD