My crankcase venting system is routed as follows: both vents are linked to a T that feeds into an oil catch can, and the output of the catch can is then introduced into the intake after the maf and before the turbo.

I will hunt for a vacuume leak too.

If in fact it is all pcm related, is that something i can expect to be sorted out by a quality tuner?

Also, noticed another drivability quirk today on the way home from work. At steady state operation, the car will surge very slightly and if i glance at the AFR gauge, the AFR will have jumped to mid 15s or higher only to settle back again to oscillate around 14.5-15.1 approx 5 seconds later.



-Adam- 2k Silver Frost #939 - 36K Miles H&R + Koni + Mirko + Elky Mesh + Hella Optilux + K&N + LoTek + Mille Miglia EVO 17" + ADC T-28 Turbo + Magnaflow 3" S.S. + exhaust leaks + CEL light + more to come...