My 2010 coupe is having a weird issue where I would lose power and the car would die and I have to hit the ground a couple times for the car to come back on. I redid my ground wire and I’m still having the same issue, but now I have power to the car but the car will not start. There’s not even a sound when I hit the push button
I have the battery tested and it tested well, jumped the starter and the car was cranking but didn’t turn it over because of safety reason but the car still will not start.
The mechanic believes it the computer that's messing up?
I was looking to get some input on what y’all think it could be.