when i checked my maf sensors everything is very clean..is it possible that my car as had the egrs blocked and switched off...how to check this with gap tool if possible.?. still struggling to search wiki l322 workshop manual down load ..i cant find how to navigate .

The MAF sensors are upstream of the dirty airflow so usually stay clean.
The MAP sensor on the doughnut is the one that needs regular cleaning.

if you have the GAP IID tool you can see the live values for the EGR operation. 2012 TDV8 Vogue (L322)

hi yes i bought gap tool but taking little time to navigate ..thanks for reply ..now i know its in there i will search and see whats happening... remember that old song (getting to know you) especially relevant to tdv8 ownership..but im getting there