I am having spark issues with my 2004 viper. Lost one head light two years ago had to unplug one light bulb with two pluged in no tack or tail light and the lights were very dull. Ran really well last year with one head light. Took the sled home from camp and had the stator rebuilt got the head lights back again. Now the spark seems like it is not firing properly. Replaced the cdi box 8fe-00 still no luck. Checked the chasy ground does any one know if there is an engine block ground or possibly a wiring harness problem.