Evening, The other halfs tfsi octy vrs starts, idles and drives perfectly fine appart from having a missfire at 4k rpm and not revving anymore when under load. Pulls like a train in all circumstances appart from this. Ive had a look on Ross-Tech and there are suggestions of either hpfp, fuel pressure regulator being faulty. Before we start spending on it has anyone been down this road before? Car is mapped but has a switchable Shark jobby so will switch that off and see if things improve. Also had a new cam follower about 5k ago. Thanks in advance :-)

Sorted, maf is dead!

Hi, 

  did your car has behaviour similar to this? ->

https://www.youtube.com/watch?v=-EnGCBlq2B8&

Edited 30 December, 20178 yr by GTICZ