Hi:
I have a 1995 Olds cutless supreme and when I'am driving at freeway speed and them let off the gas to exit the road my service engine light comes on when I reach 60 mph. It does not do this when I drive at slower speeds does any one have a suggestion on this.
thanks

 

mine does the same thing

 

if it turns off right after then theres no problem, it is just a defect in the system