Hey guys I went to start my car the other day and noticed that it cranked but slowly died. I checked the battery and it was good, so i figured the starter, I replaced the starter and it started a little better but still nothing. Read check engine light code P1165 for swirl valve solenoid and check switch. Im having trouble isolating what the issue could be or how the check the vacuum pressure switch and the solenoid. Any help would be good.