came on once the other day and went away then came back 2-3 days later and now is staying on...just had my tranny rebuilt but was doing it before that and also had my gears in and it did that before it also....
so only way i can check is LT1 edit huh?
95 maro Z28 OBD1.....
nothing feels wrong with the car...so what could it be?

 

most advance auto parts and autozones can check your can for codes for free.

 

My SES light likes to come on at random times, I have never gotten it scanned because if I turn the car off, it goes away. It mostly does it a couple of days after filling the car up. I think it has to do with the gas cap or something.....

But yea, you can get it scanned at AutoZone for free

 

I fits coming on about 20 minutes of driving, it might be the EGR valve.... Thats what my car did, 93Z..... Replace the valve, no prob since...

 

Thanks for correcting me.......But they should be able to scan mine right?