PHP код:
//This sets a 5 seconds timer and passes the player that has used the command
SetTimerEx("StartEngineForPlayer", 5000, false, "i", playerid); //I have changed the name to this since it is more readable.
//Place the following anywhere in the script, preferably around the command so you don't miss it.
forward StartEngineForPlayer(playerid); //Forwards to this function so it can be called here
public StartEngineForPlayer(playerid) //The actual function. Place what you want to happen after the function is called
{
//5 seconds passed start the engine here for the playerid
}