freelander1 td4 hi all little help please last week my car started giving problems,engine light on dash board started to come on and off when driving,the one with abriveation make on.drove ok started ok took it to get diognotic check.code came up fuel pressure problem,machanic played with fuel rail pressure plug and light went out,he cleared the error code,all was fine for a few days then yeserday started car all ok got about 5miles slowed down started to pull away but no power for around 500meters then all of a sudden power came back,this happened a few times then ok again,drove home about 10 miles no problems,plus no warning engine light on all fine again any ideas please