Check engine light is flashing and it seems to be misfiring. Temp is normal but when I sit and let it idle for a while it gets hot and the heat blows cold. I lost gas cap recently...

Thanks Tom. I’m about three miles from the auto parts store and it’s really misfiring. I know it’s hard for you to guess without seeing it but you think it’s safe to travel that far? I was wondering I guess if there’s anything that’s a red flag not to drive it from the things I told you it was doing. Thanks!

They said there was an evap code which would be the gas cap. And then it was a multi cyl misfire and cyl 2 and 3 misfire (4 codes total). But it came on fast. Rather than gradual. He said it’s prob only spark plugs and wires and needs a tune up. Being the weekend, a mechanic may be tough. And to be honest, money is super tight. He said (the guy that read the codes) it’s nothing that will cause bad damage and that I shouldn’t break down. He said it will just run really rough (that’s an underestimate) and it shouldn’t break down until I get to a mechanic. That the worst that can happen is the misfiring and bad gas mileage. He also said- worst case scenario, it could be a fuel injector. He thought I’d be okay to drive it a few days as is. Thoughts?