truck has spark, if i add gasoline through a line into the intake manifold,it starts and runs very good.once that gas runs out,it dies. fuel pump is audible upon key being turned to the on position.fuel filter was removed and blown through with no restriction.i changed the cap and rotor. i did a code check and got a "54", air charge intake sensor. what am i overlooking?

 

anyone? any ideas?

 

It says code 54 = ACT sensor circuit open. I s that what you have?

 

you said your fuel pump is running but have you actually checked fuel pressure?

 

good suggestion! what should the pressure be at?