Is there a way to test the computer to see if it is gone bad?

 

Aside from plugging in another one, and seeing if it solves the problem. No. Not really...... (and of course, the damn things aren't cheap either....)

Where did you get your crank sensor from? These trucks don't really care much for aftermarket sensors, and contrary to a prior opinion, they will not always set a code, nor are they a work/don't work deal. They may work fine when cold, get hot, and quit. Engine cools, they work fine again. (fun to troubleshoot......)

Find out what you are missing. Take it from there.

 

Make sure your tank is venting properly. I had the same symptoms with a vehicle. Would act like it ran out of gas. The pump just could pump the gas anymore...just a thought.

 

Check to make sure your getting good grounds. Check for 5v at the crank sensor, or map sensor. Check ground as well. The VT/WT wire is 5v. Check your pcm grounds too, black/tan wires (two of them from the black plug at the pcm).

Have you checked spark at the coil?

 

Ok all grounds look good,check both sides of the coil good there to, when I spray starter fluid ,it fires up but dies right away. ?

 

Will it stay running if you put your foot on the gas?

 

No , I pulled the fuel line no fuel at all comming out the pump. I didnt replace the whole plastic module just the pump, could the new pump be bad or could it be something telling it not to pump?

 

pulled the new fuel pump out put 12 v to it and nothing .

 

Time for a new one then methinks.

 

Is that common to purchase one and it go bad right off the bat ? or can something else have caused that pump to stop working . I just ordered the whole module but I am wondering why they new pump went bad after about 6 miles of driving? Dont want to install the next one and have it go dead to because of something else?