ok guys, ive been talking to the guys from power-tune.net, he is on holiday at the mo but heres a reply to one of my emails.
Sorry for the delay in getting back to you but I am am trvelling around at the moment through Australia and just arrived in Singapore last night.
Perhaps there is a problem with the car and that is why you have a flat spot. The Egr valves are not great on these cars and can get clogged up which will result in poor performance and poor MPG.
The other issue is that when using a Tuning box it makes the cats glogg up or if you have a DPF fitted in the exhaust. ( Diesel Particulate Filter ) Both of these will cause issues like you are experiencing.
Have you had any management warning lights on, and does it sometimes come on then go off?.
Have you had the diesel fuel filter changed recently. If not this will also cause a problem as the car cant get enough fuel through to the common rail.
I can and will do a free Diagagnostic check for you to see if the engine has any problems but it does not always show up some of the issues that I have mentioned. Dont mind having a look at the car for you free of charge to you.
You should get an easy 40MPG from this car in standard form and over 50MPG if driven carefully.
About the mention on the Forum we could discuss this when I get back and sort something out for you.
If you are looing for a live remap. IE A rolling road run before and after then I can do this for you. What I will do for you is to provide you with a Custom Remap specificly written for your car in order to provide the best performance and MPG.
All of the work that I do is 100% custom remaps. I dont use in any way whatsoever standard files that are just a one size fits all programme. By providing you a custom remap we look at all of the Adaption Data that is stored in the ecu and write a custom map around this to ensure the best possible performance and keep it all very safe in order that you dont get problems down the line.
Also to get very technical you cant LIVE MAP this car or a lot of other cars as they need a full date programme in the ecu called a Flash in order for the car to even start. So in essense the car cant have little bits of the programme altered when say on a rolling road or live mapped whilst driving.
If you can wait until I get home then we can meet up and have a look at you car to star with then I can take you through all off the detail that you need to before decieding if you would like me to do your car.
If you dont then thats not a problem. I will still give you my opinion and it will not cost you anything if you deciede that you want the car done on a rolling road.
Let me call you when I am back in the UK and we can sort it all out.
Hope thats ok for you.
i think i will almost defo be using this guy as it sounds great!, i currently have my eco3 off the car and it feels smooth..? will keep you posted lads.