Pontiac Repair: no pluse at injectors, engine computer, vandora

Question
hi i have a 1992 gmc vandora box truck i was driving the truck for three days, and then i cam home when i was going back out the truck didn't want to start. i notice i didn't get no pulse to the injectors.I have been replacing every thing people who knew what they are doing.Nothing work now i have a truck with a new ecm,injectors throttle pos sensor,idealer control valved.I have also have taken out the plug that goes to the injectors I've ran a little current to see if i here any sound at the injectors but nothing.I have invested to much money to junck this truck.

Answer
Hey Jose:

does the truck have spark from coil? If not then I would look at a issue in the distributor either a bad pick up coil or ignition module. The pick up coil is the trigger point for both spark and RPM input to the engine computer. so if it has no spark either that is where I would start looking. If it has spark they I would start looking at an issue at the engine computer like a bad engine ground wire to the engine computer or a bad wire connecting between the distributor and the engine computer. good luck :)