Sounds like a low battery. recharge your e-cig and if you still struggle with smoke you may need to change the filter part. You can do this buy unscrewing the bottom part of the e-cig and of course replacing it.
The blades get dull and yes you can sharpin the blades
Repaint it
yes
fix it
NO
smoke alot of pot
That would probably be bad valve seals. It would depend on the vehicle as to how easy or hard it would be to repair.
you do not fix the light. you fix what ever caused the light to come on. so the lenght of time depends on the cause for the light to go on on the first place.
you take it to a mechanic
Find and fix exhaust leak
How do i fix the eml light on in my 325i BMW
how do i fix the problem if the tcl light comes on in a 2003 mitsubishi galant