Loss of Power- help please!

Hi- I am in need of some help and advice please?

I have a 52 plate manual TD5 Disco and I can't get i to go beyond 3k revs when in gear- which means that I am topped-out at around 70 on the motorway or fast A road.

I have changed the oil and fuel filters recently- I run in mainly on bio-diesel with some 'proper' stuff too in the tank.

Is there a 'govenor' or is it a case of re-mapping- what are the suggestions please and what should I be prepared to pay?

Johnny

Didn't think td5's liked biodenzel??? Summit to do with common rail sensors n system

i heard bio can damage the injectors on the td5 which could send the ecu into safe mode stopping it revving past 3000

All sorted- I took the EGR of and it's BRILLIANT- and I'm running it on Bio diesel at 80p litre- bought locally....

I love my D2!