Let's communicate by PM, and possibly by phone. I can walk you through some basic diagnostic procedures and adjustments that might avoid any further problems. I spent 30-something years teaching auto mechanics, and doing a lot of automotive electrical work since the late 1950s.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!