Check engine light problem.

[rasgumby]

Hello all, new here and desperately need help.
93 exp..runs like new when engine is cold or if it is cold outside.
In warm weather and engine warms up,(about 20 miles out) engine light comes off and on for a few seconds and engine fades out as if out of gas then come back to normal, also rough idel.
have changed o2 sensors, Plugs and wires and fuel filter.

same thing. Any ideas??

 

[BrooklynBay]

Welcome to this forum! I've renamed, and moved your thread to the EEC-IV section. Find out what the code number is. It will help you find the part that is bad instead of replacing parts at random.

 

[rasgumby]

never done the testing stuff.
What kind of a tester do I need to get?

 

[BrooklynBay]

Check the sticky threads in this section for more information. It's very easy to do. You could use a piece of wire or even a paper clip to get the computer into a diagnostic mode to count the flashes of the check engine light.