my 93 runs fine and drives fine but after a while the service engine soon light comes on and the truck cuts off when you come to a complete stop anybody got any suggestions

 

check the code by jumpering the top right inputs on on your ob1 module under the dash on drivers side. but it sounds like you may need to clean out your EGR valve.

 

Since you started a new thread on the same subject, I am locking this one. Please confine your posts to one thread if it deals with the same problem. Thanks.