Hey guys I'm lookin at a super clean rust free hatch that has issues, he said it will idle all day in the driveway but as soon as you got to take off it dies and everything shuts off including the cluster/climate control, he sAys the PO did do a swap but it's the same stock motor, he only wants 500 bucks for it tho, I'm thinking maybe a bad ground or something of that nature idk what do u guys think?

 

Possibly vacuum leak. For 500$ for a car for yourself, i would pick it up.
Bad ground or loose as well