Hi all, I'm having trouble figuring out what's going on with my wife's AMF TDI.
Since I bought it a couple of years ago it's always felt a bit down on power, used a bit more fuel than I'd expect (averages mid 50's mpg while my BHC averaged 70+ mpg) and has used a bit of oil (maybe 100ml ever 1k or so), VCDS shows boost is consistently about 10% below specified pressure, but I can't find a boost leak in the pipework (smoke tested), and there's no fault codes. I've already replaced the rocker cover, tandem pump and EGR since all were leaking oil, and whilst consumption has reduced a little, it's not that noticeable, though the engine appears dry apart from around the turbo inlet....
However, the intercooler doesn't seem to have much oil in it (a couple of drops came out), I've checked the hoses going to the N75 valve and all are good, but I have ordered a new N75 just in case that's not working properly. If that doesn't fix it, what should I check next?
Thanks!
Since I bought it a couple of years ago it's always felt a bit down on power, used a bit more fuel than I'd expect (averages mid 50's mpg while my BHC averaged 70+ mpg) and has used a bit of oil (maybe 100ml ever 1k or so), VCDS shows boost is consistently about 10% below specified pressure, but I can't find a boost leak in the pipework (smoke tested), and there's no fault codes. I've already replaced the rocker cover, tandem pump and EGR since all were leaking oil, and whilst consumption has reduced a little, it's not that noticeable, though the engine appears dry apart from around the turbo inlet....

Thanks!
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