damn Ive never had such a terrible time diagnosing a standard electrical issue. When I turn my headlights on the car shits bed. If I rev up the car wont stall out and you here the PCM get confused and mess up fuel, exhaust starts smelling bad and revs bounce around randomly as soon as I get off gas normally resulting in stalling. So I started out thinking, well thats easy its a grounding issue, Found that my engine-chassis ground was bad. Fixed it now the entire grounding system has .3 ohms of resistance from anywhere to anywhere. Yet the issue is still their just as bad as ever. No other electrical load does this ONLY headlights/driving lights. HELP ME!!

 

Pull your headlamp fuses in the engine bay and replace with a multimeter set on amperage mode. Make sure that the multimeter can handle the load. See if it's high. Should be at least 10% under rated fuse current. Sometimes fuses can be duds and a short will not trip the fuse.

Another thing to do is pull the headlamp relay and make sure there's nothing under it which could be causing a problem.

Check your wiring inside the engine bay for shorts, frays, or cuts

Check the fuse ratings on ALL fuses to make sure that nothing has gone been replaced with a higher amperage fuse then stock.

 

WTF?

I've been scratching my head while looking at the schematic diagram for power distribution, and can't find anything dude. The only place they're relatively connected is at the fuse box bus bar. The headlights, however, are the heaviest load (40A fuse) so maybe your alternator or battery is shitting the bed? Maybe it's dropping voltage so much it's causing the engine control relay or fuel pump relay to cut out?

This is really weird. Do like DTN said and check all connections for frayed ends, squirrel bites, etc.

 

This is even more frustrating because Ive already used an amp clamp and a oscilliscope we have NO amperage flux. Now the only thing I can think of is my ignition harness is JANKY. my car was previously hotwired before I owned it, The connector is damaged and repaired POORLY. I have no idea which connector it is, Though it has the Clock wire on it and is used to start the car.