Tom Maine
Well-known member
I am a new owner of a 1991 C-4 convertible. The "check engine soon" light comes on intermittently and appears to be a code for the egr valve. Is there any ting that can be done to clear up this problem. Resetting the computer produces the same result, it goes off for a while then back on. Also the low oil light comes on even after and oil changee. This comes on intermittetenly also. Sometimes after driving 5 miles some times after 200. Any help would be appreciated. Some local mechanics that have checked out the car say there appears to be nothing wrong and to ignore the lights or put tape over the dash where the code comes up.