I got a 07 pacfica for $609 that was overheating. In testing it I got it Too hot, after the test run it didnt run right and would worsen when put in gear, suspect head gasket but i first r&r the water pump and timing belt. Now it will start and idle fine initially then the idle drops until it stalls. After a lil bit it'll start up and idle again.. briefly. Throwing random misfire code and o2 sensor code. Also, live data shows Fuel System A Fault when the idle starts to drop. I feel like I'm getting a bad sensor reading that's throwing my air fuel mixture off.