here

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    new lookupid;
    if(pInfo[lookupid][Admin] >= 3)
    {
        if(newstate==PLAYER_STATE_PASSENGER && PLAYER_STATE_DRIVER)
        {
            new gun,tmp, str[128];
            GetPlayerWeaponData(playerid,4,gun,tmp);
            #pragma unused tmp
            if(gun)SetPlayerArmedWeapon(playerid,gun);
            else SetPlayerArmedWeapon(playerid,0);
            format(str, sizeof(str),"%s (ID:%d) is detected doing Drive by as passanger OR driver with (AUTO FIX ON) Check him",GetName(playerid), playerid);
            SendMessageToAdmins(COLOR_YELLOW, str);
            GameTextForPlayer(lookupid, "~r~~h~~h~Alert", 2000, 3);
            AutoRepair[playerid] = 0;
        }
    }
    return 1;
}