Ok, jus got my new 305 in, everything in place, crank it, no start, so ok, i check gas, got it, air, got t, spark....no go. I check leads going to coil, i got power. So, either, its the coils ground (does it ground to the mounting bracket, or where?) or the coils burnt out.

if its burnt out, i have a good coil from a chevy truck, its old style, positive in, neg out. Can i just plug that in with the positive to the hot feed for my coil, and the neg to the block, so i can get the car to my auto school to figure out whats worng with it?? They have alldata there, and a lot of people, itll be easy if i can get it there.

 

?? anybody??

 

Ok, heres the deal, got power to the coil doring ignition and in run modes, but nothing out of coil, no spark. The sensor is hooked up, and the control modual is new. I did the 3 ohm tests for the coil and they sa its fine, but im still getting no spark out of the secondarys.

New coil time?

 

ok, not the coil...

i think its a wireing problem

wat would cause it not to fire the secondaries?

 

bad ground?

 

Is the ground the bracket the coil attaches to? or is it a wire in the plug?

 

Module?? , pickup coil ??

 

I agree with JP86SS to check the pickup coil.Is this the Distributor with the remote coil or the coil in cap?If coil in cap is the rotor contact in place under the coil?And new module have been kbow to be bad out of the box.Most parts places can check the module for you.

 

If this is a remote coil setup with 7/8 pin module, be sure the sensor leads from the pickup coil to the module are not reversed.
Can cause issues as well. Could also be a problem with other designs of modules, just not sure.

didn't see that the module was new, but they can still be bad.

 

The old modual worked before the swap, just got a new one bc there cheap, and to rule out a problem.

It isnt coil in cap, its remote coil, has 2, 2 wire plugs in top. One plug(with 2 wires) goes to the IAT sensor in the rear of the TPI intake, the other one is a power lead, with the pink being power, and the white going to the instruments in the dash.

The coil is new, modal is new, sensor is new, cap and rotor is new, and so on.

But, the problem wouldnt lie in the cap and rotor, being im getting no spark out of the coil in the first place..

question is the ground, does it ground to the mounting bracket? or is the ground the white wire to the cluster?

 

My '95 Jimmy has the remote coil and it grounds thru the coil bracket.Check all you connections make sure they're tight(use dilectric grease helps cut down on moisture/corrosion).Again it sounds like you have a bad pickup coil in the distributor.

 

Forget the grounds. The coil grounds itself through its bracket; and the whole rest of the system is grounded by the distributor housing in the block.

I'd suggest 2 things: first, go back and check your work carefully (all wires hooked up right and so forth); and second, put the old module back.

One of the most basic rules of troubleshooting is, if you make a change and don't get the results you expect, put it back like it was. A corollary is, if it worked before you worked on it but is broke after you messed with it, you did something wrong.

"Maybe it's this, maybe it's that" will only drain your wallet while hiking back and forth to the parts store on foot. Fiddling around with the car's wiring will only result in broken connectors, intermittent connections, hacked harnesses, etc.

 

ill check the brackets ground, maybe thats the problem, if not, ill but all the old stuff back on.

 

If the bracket is touching the engine, it's grounded enough to work. No 12V current flows through it, only spark current; so if it's not grounded, you'd be seeing GIANT sparks all over the coil frame. If you're not seeing that, then "ground" isn't your issue.

Like I said, I wouldn't worry about "grounds". Check your work, then try your old module.

 

The funny thing is that I moved my coil to the AC box housing (which is plastic by the way). No sparks or anything. I doubt that the coil is grounded to the bracket, cuz bracket is barely touching the coil let alone any wires or any internal parts of the coil.
Try your module they are cheap enough. Than get a coil and try it. If it does not work just return it. (I know you cant return electrical parts, but if you make it look clean they would not even make a problem).


If both of these fail, check the wiring to the coil. If they all have power than its something electrical or unhooked!