Truck starts and then dies , i go out pulled off the pvc and it stayed running, i put the hose back on it dies untill it warms up then it all good untill next morning or sometimes after it cools completly down, please help, it threw a evap code

Possibly an idle air motor for your idle problem or a vacuum hose off.

hello ther I belive it is your ecu very common

You probably have a bad hose or a bad hose connection that is sucking mostly air instead of delivering full fuel to the carburetor!

Try putting your car in neutral, and then start it. Once it starts, put it in park, once you hear the engine start to choke out, rev the gas pedal, and see if it stays on. I used to have this problem with my '95 Ford Contour, I forget what the problem was. But, until you solve it, this may be your only solution lol. Maybe EGR Valve could be bad?

sounds like an old case of vaporlock.

check the hose for the pvc vavle it could be split

Check for an air leak in the fuel system. It sounds like the son-in -law did good work but missed an air leak somewhere. The system is not providing enough fuel to the engine. The other possibility is that you are pulling a vacuum on the fuel tank. They have to be vented either through the cap or through the canister. First take the fuel cap off and see if the truck will run. If it does put the fuel cap back on and pull the hose off the canister and try to run the truck. If it runs it was the canister.

check for a vaccum leak on the PVC hose on the intake if there is no problem there the idle air control valve maybe no good also make sure the EGR valve is not open the check engine light sould be on if that was the problem

Replace the PVC valve, it's probably clogged.

Sounds like the computer system readjusted it self to the specific air measurements that the busted hose was allowing in to the engine.(This is only relevant if you have a 1987-up) turn off the car, remove the battery cables, and let sit for 45 min, this is ample time to reset the computer memory. Reattatch cables and start. It may run rough for a few miles but if after say 50 miles of driving, if it still wont idle, than you may need to replace sensors. (MAF, intake sensors, O2 sensors, etc..)