My l993 ford tauras is due for 'smog inspection'. My 'engine' light is flashing on, then goes off. What to do?
When hits a certain RPM ( approx. 45 mph) the 'check engine' light comes on. If I go slower or faster it goes off again. Then it can light at faster mph also. It's driving me crazy! Unfortuneatly, my car is due for 'smog inspection', two days ago. I've read my 'HAYNES tECHBOOK', also my chilton book, yet I'm still not clear on how to retrieve and clear the codes. Is there anyone who knows what to do????