the helms manual has a wiring diagram you need to spend an afternoon checking any and all wires for shorts conserning the ignition and fuel system, if you smelled it i would start inside the car around the steering column your gonna check from one end of the wire to the other end of the same wire so take off the baterry so you have nothing to worry about this happen to me once and it turned out to be a wire connected to the ignition relay that wore out the insulation then grounded out and fried itself....took about 2 bucks to fix but 2 hours to find just be patient wiring diagrams arent hard at all just take your time