Hey guys iv'e been on before about this, but im really interested to know if anyone has the same characteristic as me. I got the car mapped by angel tuning, the guy i got it mapped off of i know v.well and had done my previous ibiza fr tdi to 180bhp with no issues!!! Absolutly fantastic! ANyway he done my pd 170 and he came highly recommended doing over 100 pd170 in octavia vrs, golf gtdi and leon fr tdi models etc. I got the car done and what can i say fantastic. Drove it hard for about 30 miles from the tuners to my friends house. Pushing it through the gears feeling the difference. After going home frm my m8s 15 mins afterwards. I put my foot down in 3rd changed at 4k and there was a slight hesitiation..... the revs dropped slightly when i put my foot down quickly after changing and then picked back up... I blamed it on traction as it was wet. Waited till going to work the next morning in the dry and it continued to do it 3rd-4th if changing quickly. It also occasionally happened on quick change frm 4th-5th if going hard. He took the map off for me to go to the dealers for a check up. The second the map was off no problem apart frm a serious lack in power compared to map version lol. Took it to stealers they did a diagnostic check no fault codes. My tuner who is also a friend told me he thought it was the ecu controlling the boost so not to damage the engine. He put the map back on which is fantastic but at times if driving hard and changing quickly frm 3rd-4th the car still does it at 3.5-4k revs. I can avoid this by changing gear a bit slower and not putting the foot down completly straight away on change. Please people im wondering if someone can give me any advice, if you agree with it being an ecu problem or if anyone else has had the same problem. it's just a little annoying lol. Has anyone heard of this before? ANy comments would be great cheers