After getting a new purge valve for car not starting after getting gas, car decided not to start sometimes on humid or hot evenings instead. No one could diagnose it because it wouldn’t act up for them. So I took it to the dealer. They told me it did act up for them and they diagnosed a bad purge valve, and put a new one in, along with a fuel filter. So I drove it back home, drove to work the next day (today) no problem, but trying to drive home from work it’s the steamiest day so far this year and it’s the evening, and bam, the exact same thing happens. I think maybe it did need a new purge valve but that wasn’t enough.
The only thing I did different when I drove to work this morning (said thing being a thing that I sometimes do if I’m stressed, which is most likely to be on hot or humid days) is I forgot to put it in Park before I turned the key to shut the engine off, so it stopped abruptly, which I always notice the abrupt stop when that happens and turn the car back on, put it in Park and turn it off again. Could that be confusing my car? ( I know it wouldn’t confuse a normal car. I am talking about my car, which due to a corroded battery got a new starter, wiring harness and shift cable assembly) Could it even have something to do with the security system, as one mechanic suggested? Any ideas?