Diesel regulation valve replacement

If your Mazda 6 (mine's a 2 litre TD) experiences the following, then I'd suggest replacing the fuel regulation valve: -

• engine cutting out or stalling when slowing down
• fluctuating idle
  
• no faults stored on the computer
  

For a while, it was a difficult problem to isolate and the dealers, who want to make a killing out of you, will tell you to replace the fuel pump. That will only cost you between £1,000 and £1,500 so I opted for the cheaper option of replacing the fuel regulation valve.

It cost me £190 in total, thankfully covered by warranty, but the part is approximately £130. The fuel system is Denso and the guy who did the work for me was PJ Jones in Stretford, Manchester. Hope this helps someone out there ;)