They are electronic and mostly unbuffered. Removing a sensor with ignition on can do it or sometimes a sensor just failing is enough. Most times its just age or dampness although electrical storms and high power transmitters have been linked to isolated failures
No
Depends on car. I've seen them at around $150 to $10000
The solution to Car Ton Jack is: Jack in the box for Jack in Carton.
A scan tool would pull up any codes to could show a problem with the PCM/ECU.
Depends on how hard the 'bumping'. Simple hits on a flat side of a door or desk would not cause brain damage. If you hit the corner, it still wouldn't cause B.D. but it would certainly cause more outer damage, bruise, cuts etc. The only way to cause brain damage would be to hit your head with tremendous force that your brain actually moves within your skull, as might happen in a car accident, a fall or repeated hits to the head, playing football for example.
Engine control unit Its the brain box of your car controls everything electronic
The ECM, computer, is mounted to the firewall inside the car behind the glove box.
I would dig them out. They may not be a issue other than an annoying noise as they rattle around but they may get into something and cause a problem.
a small evap leak would not cause your car to jerk.
depends on the car... try checking the manuel... if it is a car...
Yes, if it is glycol base the vapors can cause headaches and nausea,and if strong enough can cause brain damage
Answer 1 - Fuse Panel FireThe cause is/was a "SHORT CIRCUIT" condition on the "incoming" [from the battery] side of the fuse panel.