Hello before I start to explain I would just like to say I have not got much experience with fault finding so need all the help I can get
Ive had a new turbo fitted and now the car takes a while to respond below 2000rpm, to cut a long story short the garage replaced both the boost pipes replaced, all new vacuum pipes (and pressure tested), a new boost valve and also a new maf.
The car was still the same so I decided to say to the garage not to bother and I would go somewhere else.
I myself checked all pipe work and also pressure checked the vacuum pipes and cleaned boost sensor, I then got a laptop and lead and used multiecuscan to have a look at things.
I check boost values compared to desired and they wasn't far off tbh usually below a little which thought was odd because I when I checked a year ago i thought they were slightly above but cant remember for sure (Ive attached csv file of my drive)
I decided to check the maf reading as I was sure it had to be the maf after looking at the boost values and the car performing well above 2000rpm and also checking EGR was working correct.
There was a big difference between desired intake vs actual intake, I decided I must of got a bad maf so went and got another under replacement but got the same readings. (Ive attached csv file of my drive)
I did a drive with it unplugged but the overall performace was not bad so thought it must be doing something right maybe anyway lol.
Im lost really the only thing I can put it down is a bad wire to maf or something
Any help at all would be very appreciated