Hi, my car feels underpower and feels like its dumping boost intermitantly, ive done some logs, could someone please advise what could be wrong. The air mass only reads upto a max of 143g/s. I've done two logs in 3rd gear and merged them into one.
Thanks for the reply, it was foot down to 5,600rpm. On the air mass logs you can see the load is 100% at 5,600 rpm and reads very low. It should be higher through out the rev range I would have thought. Maybe leaky dv or knackered maf?
I did an earlier run to redline in second and only reached a peak g/s of 165.
Am I able to log the blocks you recommend in 2nd gear or does it have to be 3rd?
I unplugged the maf and there wasn't a great difference felt a littl bit better if anything but can't be sure. Does my boost graph look ok, looks abit wavey if you know what I mean.
Wouldn't say the fluctuations were too much to worry about. Log your N75 duty cycle on block 118 and see what it's doing. I replaced mine a few weeks back as I suspected it being faulty and at first it felt like the new one was much more responsive - boost spikes were reigned in by about 2 psi according to my gauge so was happy with that. The N75 has supposedly been revised over the years as the end character in the part number has changed - I think the latest ones are 'E' so it's worth 30 quid or so and trying a new one if you suspect there's something up with it.
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