in keeping  with what been said.

• Make sure you aren't using a crack - We don't support cracks or people using pirated software---(no using it)
• Update GTA IV to 1.0.7.0 (the latest version of the game, or 1.1.2.0 for EFLC) - These patches are needed.  (all patches)
• Make sure that you run the game as an administrator.(doing this everytime)
• Make sure that your GTA IV root folder (and every subdirectory) is not set to "read-only"
• Ensure that ScriptHook.dll, ScriptHookDotNet.asi and Dsound.dll OR Xlive.dll are in the GTA IV ROOT folder (all present)
• Ensure that there is a folder titled 'LCPDFR' in the ROOT GTA IV folder.( Check)
• Check that all the above files exist, if they do not, reinstall LCPDFR with the MANUAL installation. (did that too)
• Ensure that you are using up to date versions of every LCPDFR dependency and LCPDFR itself.(check it twice)
• Install these: https://www.microsoft.com/en-us/download/details.aspx?id=30653 , https://www.microsoft.com/en-us/download/details.aspx?id=30679 
• Give a clear, detailed description of the problem. (diagnostics are saying there is a fail in the log check;

Log Check] AdvancedHook.log lists a game crash. This is probably not LCPDFR related.
[Log Check] Log started on: 12:34:40 5-4-2015
------------------------
[INFO - 12:34:40] Gameversion - 1.0.7.0
[INFO - 12:34:40] XLiveLess present - skipping xlive changes
[INFO - 12:34:40] Improving ELS compatibility
[INFO - 12:34:40] AdvancedHook 0.38 (C) 2010-2015 LMS - Initialized
[INFO - 12:34:40] E-Mail: lms@lcpdfr.com
[INFO - 12:34:40] Permission granted for LCPDFR & ELS only
[INFO - 12:34:40] Thanks to listener, aru, #iv-modding and cp702
[INFO - 12:34:40] Attaching exception handler...
[INFO - 12:34:40] Exception handler attached
[INFO - 12:34:40] Patching game functions...
[INFO - 12:34:40] New instance created: ELS
[INFO - 12:35:39] An exception occured
[INFO - 12:35:39] Minidump saved
[INFO - 12:35:39]
Process: 670000

Address: C674D9 (Faulting module: C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto IV\GTAIV\GTAIV.exe loaded into process space at A70000 - function offset without PE header is: 1F64D9)

Code: C0000005

Registerdump - EAX: 244B910 EBP: 244B770 EBX: FFFFFFFF ECX: 85F10C0 EDI: FFFFFFFF EDX: 8538F910 EIP: C674D9 ESI: 244BAE0 ESP: 244B770

[INFO - 12:35:39] Launching LCPDFR Diagnostics Tool
[INFO - 12:35:39] Launching LCPDFR error reporter

• Explain any circumstances surrounding the problem. (during general game play this crash happens at random most notable after a car chase) 
• State what solutions you have tried.( All the above+ going through the forum to see if any one else has had the same problem , which they have but their solutions are not working for me)
• Post ALL relevant logs (LCPDFR.log, Scripthook.log, ScriptHookDotNet.log, AdvancedHook.log).Advanced hook

Log started on: 12:34:40 5-4-2015
------------------------
[INFO - 12:34:40] Gameversion - 1.0.7.0
[INFO - 12:34:40] XLiveLess present - skipping xlive changes
[INFO - 12:34:40] Improving ELS compatibility
[INFO - 12:34:40] AdvancedHook 0.38 (C) 2010-2015 LMS - Initialized
[INFO - 12:34:40] E-Mail: lms@lcpdfr.com
[INFO - 12:34:40] Permission granted for LCPDFR & ELS only
[INFO - 12:34:40] Thanks to listener, aru, #iv-modding and cp702
[INFO - 12:34:40] Attaching exception handler...
[INFO - 12:34:40] Exception handler attached
[INFO - 12:34:40] Patching game functions...
[INFO - 12:34:40] New instance created: ELS
[INFO - 12:35:39] An exception occured
[INFO - 12:35:39] Minidump saved
[INFO - 12:35:39]
Process: 670000

Address: C674D9 (Faulting module: C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto IV\GTAIV\GTAIV.exe loaded into process space at A70000 - function offset without PE header is: 1F64D9)

Code: C0000005

Registerdump - EAX: 244B910 EBP: 244B770 EBX: FFFFFFFF ECX: 85F10C0 EDI: FFFFFFFF EDX: 8538F910 EIP: C674D9 ESI: 244BAE0 ESP: 244B770

[INFO - 12:35:39] Launching LCPDFR Diagnostics Tool
[INFO - 12:35:39] Launching LCPDFR error reporter

--------------Scripthook.log

Log start: Mon May 04 12:34:40 2015
-----------------------------------------------
[INFO] GTA IV Script Hook 0.5.1 - (C) 2009, Aru - Initialized
[INFO] Process base address: 0xa70000
[INFO] Auto detecting game version
[INFO] Using game version 1.0.7
[INFO] Initiating: Luxart Emergency Lighting System IV (ELS) by Lt.Caine
[INFO] (ELS) Script started: ELS V8.5 R-001
[INFO] (ELS) Files - General information retrieved.
[INFO] (ELS) Files - VMID [002] 'AMBULANCE',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - VMID [027] 'FBI',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - VMID [031] 'FIRETRUCK',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - VMID [052] 'NOOSE',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - VMID [053] 'NSTOCKADE',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - VMID [063] 'POLICE',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - VMID [064] 'POLICE2',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - VMID [065] 'POLPATRIOT',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - VMID [070] 'PSTOCKADE',
[INFO]       <ACTIVE> Using data from file: 'default_config'
[INFO]       wrn_type: leds
[INFO]       pri_type: leds
[INFO]       sec_type: leds
[INFO] (ELS) Files - Vehicle information retrieved. Detected [9] ELS-enabled models.
[INFO] [AdvScriptThread] Thread started
[INFO] [EmergencyLightingSystem] Thread started
[INFO] [ScriptHookDotNet] Thread started
[ERROR] Native function named "SWITCH_RANDOM_TRAINS " is not available.
[ERROR] Native function named "SWITCH_RANDOM_TRAINS " is not available.
 

 

 

 

Include as much information as possible.

• Post your system specifications.(windows 8.1, intel core I5, 3.50hz, , 16 gb ram , 64 bit
• Post what other mods you are using. This includes car and script mods. speed radar mod ,emergency lights 8.0

(...)

• Make sure you aren't using a crack - We don't support cracks or people using pirated software---(no using it)
• (...)
• Ensure that ScriptHook.dll, ScriptHookDotNet.asi and Dsound.dll OR Xlive.dll are in the GTA IV ROOT folder (all present)

(...)

​Just to verify since the answers aren't that clear, are you using a crack (yes/no) and are dsound adn Xlive both present or just one of them?

Not using crack  /Xlive Is present

I can't find anything wrong in the logs you've posted. Have you tried reinstalling LCPDFR on an unmodded GTA IV file to see if that works?

YES SIR.