Disappearing code

[zlightning]

Ok when ever I get over 55 or 60mph I set a code. It stays on until I turn of my car. Has anyone had experience with this type of problem before?

[zlightning]

Anybody? I was wondering. Since My car doesn't really turn off until I open the doors could I set the code have it run have someone from autozone or somewhere get in the passenger seat with the code puller and then shut off the engine think they could read them then? understand what I am talking about?

[predator5100]

Very well could be egr mine did that take off the egr and clean it out wiht carb cleaner then let it dry and replace see what that does

[zlightning]

I just replaced the egr valve. Like 300 miles ago.

[predator5100]

maybe it's bad did you reset the computer after doing so maybe the computer is still snesing it as bad although it's good. By the way this is called a soft code when the computer onlyr reads it after so long and then shuts off untill you reach speeds again