Check Engine Light

[wth]

have a check engine light that keeps coming on and then goes out when driving, it does it when driving down the highway
at 65 and above, it comes on and you let off the gas and it goes out.

Car is a 92 GL auto with 155k mileage on it.

Have checked oil, air filter and plugs/wires, also have checked fuses and for loose wires or plug ins
changed oil and air filter and trans fluid and filter as well, also have check out VAF and ECM plug wires
as well as pcv filter/plug.

My question is anyone every have this problem and know what it is that maybe wrong.
signed stumped in Georgia LOL

wth

[bravekozak]

Check the last engine code by grounding the self test connector, located between the master brake cylinder and the left strut tower. Count the number of flashes and report back.