Hi guys Im new here, however Ive been experiencing a very annoying problem. Since Im not so experienced with these motors Im hoping someone might shed some light or direct to the correct path to solving this problem.
I have the 2.0TFSI k03 lump with basically ALL supporting mods and custom ECU tuning to a what i would call a stage 2++ (with an extra plus on there because im over 285bhp)
Right the symptom is this: anywhere between 5200rpm and 6200rpm in ONLY 3rd or 4th gear I get an extreme boost drop and then a rise again. I know its normal for the boost to taper off as i go up the revs but to drop from 15-16psi to 8psi and then to rise to 13psi again seems quite strange to me. The extremity of the drop depends on the rpm that it happens if its higher up the revs then the drop is less extreme
I get the feeling that its the wastegate opening and closing again for some reason! I have changed the cam follower but nothing, we are also trying to catch the problem on data-logging but it hasnt done it so far while its connected to the laptop.
What i plan to do is change the intake cam as it wasnt changed with the newer harded alloyed cam that was in the recall and also add S3 injectors as my tuners suspicion is that its a fuelling problem.
Its really getting me frustrated as it wont let me enjoy the pull and the torque of the car :(.
Can anyone help? Has anyone had something similar?
Thanks in advance
PS: the car boosts normally to full boost so its not a leak problem