Thanks again Jules,
I Dont know whether my performance is down or not. It certainly improved when I replaced the MAF sensor below 2000rpm. And I am not intersted in performance too much anyway. But improving mpg to somewhere near 40mpg would be great.
I am certaibly not saying replacing the stat did not help, but maybe 1-2mpg, so for me, hardly noticable. However the benefits with regard heat in the cab were well worth it, till I retro-fitted a new FBH this year, which made that benefit slightly redundant.
I would consider a punt with a mapping disc, as I think they are about £200 plus vat, but once I found a T4 (now ems has gone) the total cost would be near £300. Thats a lot of money to get back at 8000 miles per year.
But I will continue to search for the answer, if my car is much more uneconomical than other CDTI autos.
Matt
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