Rodents! Why does it always have to be rodents?!
(Sorry, the DW had Indiana Jones on last night, and the snake scene was fresh in my mind:)! Seem the same disgust he had for the snakes, would fit my mood if I had found chewed wires!!)
OP - Do the easy things first. Borrow a reader and plug it in for any codes. Chase down the spark plug wires for damage. (I know at least 10 people who had 8.1 spark plug wire problems...)
And please close the loop back when you find root cause - as it might help others in the future:)!
Best to you and all,
Smitty