Its just not boosting anymore, its been lacking any real power for around 4months now. New n75 (audi oem) new tfsi red coil packs, new plugs, new DV, new MAF (audi oem, exact for my engine code) pressure and smoke tested (yes, 2 different mechanics, both methods) no leaks (up to 18psi, blew to the TIP off in one test) no codes, and not boosting, feels like its in soft limp and can not for the life of me get it out. Resetting the ecu does nothing, Im so out of ideas and getting to the point where I may sell this thing.
Very rough idle (not dead coil pack rough, but rough), its missing, idle is fluctuating. It actually misses so heavily at idle sometimes quite often i can hear what sounds to be a mechanical clunk that makes the whole car shudder. (what is this??) It doesn't miss under load/acceleration however (what little acceleration there is) The DV is very quiet, and there is almost no induction sound, (when i first installed my 42dd pod it sounded like it would suck in a small child if they stood too close, now, its barely audible under any sort of load)
Its also drinking fuel, have gone from 600km to a tank to about 450km to a tank. Prior to this 4months ago, it was boosting hard, so much so that I was getting a ton of torque steer under WOT. Got a hole in my intercooler piping, put it into limp, fixed this right away, but ever since then its never ever come out of soft limp
There was a loud crunch from deep in the engine bay and a big puff of black smoke from the exhaust(just happened once) about a month ago under WOT trying to get some sort of power out of the turbo. I thought I had blown my turbo, but it doesn't sound any different and it didn't change the performance at all for better or worse. (also threw no codes)
When this all first began 4 months ago, I swear my turbo started sounding different, instead of a very clean whir and almost a buzz (that deep pressurised tone you can feel it producing under WOT) under acceleration, it became more of a whooshing sound, no more of that really heavy, sharp, really solid spooling (if these descriptions give you anything to go by) the sound it has made for the last 4 months is more like a weak whooshing, to me it sounds like the air is escaping the turbo before even gets into my system, its not spooling anywhere near as fast as it used to, there's no more demand for a ton of air as the almost silent induction sound would suggest.
But wouldn't either of my pressure tests have found a cracked turbo? Is my turbo dead? Im beginning to think its fried. Wouldn't codes be thrown if I was loosing air through a dead turbo?
Very rough idle (not dead coil pack rough, but rough), its missing, idle is fluctuating. It actually misses so heavily at idle sometimes quite often i can hear what sounds to be a mechanical clunk that makes the whole car shudder. (what is this??) It doesn't miss under load/acceleration however (what little acceleration there is) The DV is very quiet, and there is almost no induction sound, (when i first installed my 42dd pod it sounded like it would suck in a small child if they stood too close, now, its barely audible under any sort of load)
Its also drinking fuel, have gone from 600km to a tank to about 450km to a tank. Prior to this 4months ago, it was boosting hard, so much so that I was getting a ton of torque steer under WOT. Got a hole in my intercooler piping, put it into limp, fixed this right away, but ever since then its never ever come out of soft limp
There was a loud crunch from deep in the engine bay and a big puff of black smoke from the exhaust(just happened once) about a month ago under WOT trying to get some sort of power out of the turbo. I thought I had blown my turbo, but it doesn't sound any different and it didn't change the performance at all for better or worse. (also threw no codes)
When this all first began 4 months ago, I swear my turbo started sounding different, instead of a very clean whir and almost a buzz (that deep pressurised tone you can feel it producing under WOT) under acceleration, it became more of a whooshing sound, no more of that really heavy, sharp, really solid spooling (if these descriptions give you anything to go by) the sound it has made for the last 4 months is more like a weak whooshing, to me it sounds like the air is escaping the turbo before even gets into my system, its not spooling anywhere near as fast as it used to, there's no more demand for a ton of air as the almost silent induction sound would suggest.
But wouldn't either of my pressure tests have found a cracked turbo? Is my turbo dead? Im beginning to think its fried. Wouldn't codes be thrown if I was loosing air through a dead turbo?