How can a CME affect car engines? especially if the engine

A cme will fry the transistors if they are in use or not.

I had read this. Ground your vehicle by handing a chain that touches the ground.

You guys are crazy. A CME is a very large scale geomagnetic event. The wavelengths are long and it only couples to large scale structures such as cross country power lines etc...

It is the voltages induced in the power lines that will destroy equipment that is PLUGGED IN to the power grid. Anything that is not plugged in (such as your car) will be OK. The military has EMP weapons that generate much shorter wavelength bursts. These weapons will destroy isolated equipment... however, those effects will be limited to a much smaller area. Such weapons are used on high value targets such as comm centers, command bunkers etc.

The high atmospheric nuclear EMP weapon may be more effective, but I doubt it would be effective over the whole continent... probably just a statewide area or smaller area

Let me simplify this.... Go rent a backhoe and dig a 12x50 hole 12' deep with a ramp down... Go buy a shipping container and drop it in the hole.... Construct concrete wing ends by the doors... Bury the container... Open doors and drive car in... Put all solar chargers and electronics in... Close doors... You have a faraday cage 3-4 feet under ground all good... For added protection take chicken wire and lay accross container two directions before you bury it...

Ultralight.

IF a CME event was strong enough to cause issues with the windings and other parts of the engine (excluding modern computer chips) then the whole world would be in serious do-do.

Serious as in the plasma wave would brush aside the ozone layer as if it was nothing, power plants would be bursting into flames, every transmission line arcing like lightening, and of course the UV intensity would be high enough to give people 2nd and 3rd degree sunburns in minutes.

Tests during the cold war revealed that a metal surrounded vehicle, being isolated from ground on its rubber tires is not affected by the EMF pulse of a nuclear bomb, even at close range.

Even the battery, the most 'delicate' part of the 'electronics' back then stayed good in most cases as long as the engine was off.

It is theorized (no body has tested this well not officially) that an all metal car body would act much like a Faraday cage on anything inside the engine compartment. It is highly likely that even the computer chips inside the engine compartment could survive a pulse.

I see some comments regarding electricity constantly flowing in a car that is turned off...

Would disconnecting the car batteries before a Carrington-type event prevent such circulation of this EMP fuckery?

someone should develop a material to cover the car in or insulate garage with; i totalled my old car last year and had to buy a newer one, i hate it, everything is electric,