T 180 Fuel Consumption Figures

[Lordy1]

ECU upgrade - good question.

I asked this myself, was told the service record says yes, but there is no sticker in the engine compartment.

EGR valve - interesting. The car makes a 'percolating' noise when the turbo cuts in at 1700 rpm (just like a petrol engine pinking). The diagnostic system has no flags - I just paid to have it read. Are there any diagnostics which would indicate EGR valve malfunction?

Only owned a T180 for a few weeks now, have very poor fuel economy around 27 combined and also have this 'percolating' noise under 2000 rpm from the turbo, (good description as I was struggling to find the word), have got mine back at the Toyota dealers next week for them to investigate. I will let you know.