I have a low milage (18,000 miles) Hdi That i am having a few issues with loss of power I have claen both the Map and Maf sensors with no effect so I have just taken out the Map sensor and it is very dirty againg after just about 300 miles. Is this due to the EGR valve needing cleaning ? I have also noticed that the is quite a bite of smoke from the exhaust when warm and just ticking over. any suggestion as to what may be the problem.
Thanks
Thanks