use a diganotstic tool to see why the computer is sending a fault it may be your crank-positon sensor
I believe you are "standing", not parked.
If your car is running when parked then it is burning gas. Cars use gasoline to run the engine.
try the ecu If the problem is there when the car has been parked and the interior temp is warm or hot, then its most likely to be the Main relay. This will stop the fuel pump from running.
Usually when parked at a speed trap or when stationary.
Because your car is running and they dont want someone to hop in your car and steal it
Diesels are kept running while parked for various reasons. In cold weather, a diesel may be very difficult to start so it is better to leave it running. Maybe the engine is needed to run heat or A/C for the sleeper cab.
New plugs and flush fuel system, includes draining tank and fill with fresh fuel.
Exhaust fumes may enter and that is not good.
You don't unless you are parked with the engine running. If you are parked and you want the engine running but don't want the daytime running lights on just shut the car off and set the parking brake then start the car back up. The lights should remain off until you release the parking brake.
Car alarm in Lexus ES300 started going off at random when car was parked, not running. I changed the key fob battery (flat watch battery) with a new battery and it fixed the problem.
Does yours have air suspension on it. You may have a leak causing it to sit lower when you are not running. Ford Expeditions with air suspension is designed to lower when parked for easier access.
you parked in the wrong spot and got towed lol