Good morning.We have this citroen in with us today the customer in complaning of a hesitation on gear change & a slight puff of gray to blue smoke. there are no fault codes stored but on test we can hear a int knock stroke rattle when on boost like a Diesel knock. We have checked all live dater the only thing we can find is on the injector flow correction no3 injector is by the looks of it out of spec. I have posted a snap shot of the live dater of the injectors. Could someone please have a look & see what you think.