truck runs fine
check engine light is constantly lit

if you have 5 mins. maybe you'll spot something

http://www.youtube.com/watch?v=zqIny7bUJfY

 

take a paperclip and jumper te1 and e1 (or whatever they are on the 3vze)in the diagnosis terminal, turn the ignition to "on" but dont start it. count the number of times the CEL flashes. post back what you get.

if nothing- light will flash constantly every second

if ONE code- light will flash that TWO DIGIT code (ie 21) like so: flash-flash*second pause*flash* two second pause *flash-flash* second pause *flash*, and so on.

if more than one code there will be at least two seconds between the the two different codes. It will flash each code once, then loop again.

 

added the truck info to your thread title...