I’ve owned my car for over 5 years now and never seen the check engine light
Lit up other than when starting up the car I thought it didn’t work . But 2 weeks ago and again today
It lit up for only 10 seconds and then goes away same as the previous time anyone have an idea in what it could be

It’s a 94 celica obd1 Manual

I know I’ve been posting a lot of questions lately
But only cause I’m sad cause I see no more posts on the main page /:
Thanks in advance

take a paper clip and jump the TE1 and E1 pins in the diagnostic box in the engine bay and see what codes it throws up. You should be able to google how to do the process and pull up the readings.