I am new to the forum and I decided to post this question here.

Last summer I decided to start working on a mighty max that has been sitting for around 10 years. I replaced the fuel pump the ECU the mass air flow sensor, I even put a new gas tank on it. When ever you drive it, at a certain speed the truck will shut off and you will have to restart it. It usually happens in third gear. It could be that the new ECU is bad, or the new Mass airflow sensor is bad.

I just cannot seem to figure out what is wrong with it. I plan to work on it some more this summer, but any suggestions would help. The Mighty Max that is my profile picture is the mighty max that I am working on.

One more thing, any suggestions on parts will be welcome, as there are a few good junkyards about 15 minutes away.