Hi Chanaka

Sorry i am struggling to follow this thread
now

If it an old style turbo with pressure operated wast-gate in may not have a map sensor, as there it would not need both MAP & MAF

>>>>>Can anybody Explain How in Diesel Vehicles TURBO INTER COOLER Leak Could Cause Black Smoke.. ?? <<<
Are you saying the inter cooler is leaking ?

>>>>Please tell me HOW DO I FIND OUT BLACK SMOKE IS DUE TO BAD INJECTORS DUMPING TOO MUCH FUEL..????<<<

Black smoke is mostly caused by insufficient air / oxygen to burn fuel injected,so prove air supply is good first !

qty of fuel is controlled by ECU so next step is to make sure all sensors / inputs are correct.

Next step would be prove engine mechanical condition good. (compression's, valve timing etc)

If all above OK suspect possible injector fault, wont be dumping fuel as that is controlled by other factors, but could be poor spray pattern resulting in poor burn. Best to have them bench tested

Aidan