no injector pulse or coil pulse

[joey_crandall]

so does anyone have anymore ideas on this. the guy that rebuilt my ecu said i was right about the no inj or coil pulse when i brought it in, and he said it was fine after the repair. but now the inj or coil pulse isnt grounding out. so what grounds should i check the ecu one is clean and tight the battery one seems good. what are some other main or important grounds i should check?

[4doorciv]

Theres one right on the ecu case to cab bolt. Others can be right on the engine, just gotta check which bolts got wires going to em like around the intake manifold. How's the distributor?

[joey_crandall]

the distributor is fine. my brother checked it with an osciliscope.

[camoit]

does it get spark? If so then it's a fuel problem. There has to be somthing sipmple that is the cause. a plug with coresion in it or somthing.

[joey_crandall]

its not getting spark or fuel. is there some sort of ground in the distibutor that grounds out the pulse for the injectors and coil.

[4doorciv]

I'm not too sure how distributor sends the signal to the computer to fire the injectors and spark but it does. How's your fuses? Have you checked the fuses and fusable links yet? The computer even have power to turn on?

[camoit]

there might be a ground in the fuse box.

[joey_crandall]

ive checked all the fuses inside the truck and they were good. and the fuseible links looked anf felt okay. but ill try changing them, see if that helps.

[joey_crandall]

so changing the fusible links didnt do anything, and i put in a ditributor from a wrecker. adn it still doesnt start. but i didnt get a chance to see if nothings pulsing.

[camoit]

That sucks. There must be somthing. Do you have any way to hook it up to a scanner or somthing like that? That could give you an idea where to look. Here is a dumb question. Does it get power to the coil when cranking? Or only when the key is on?