miles per gallon?

[Speedtouch]

Or just disconnect the ECU...

[bmania]

thankyou all for your help. i went to my local halfords and they did not have any compression gauges in stock so i could not do it today. BUT i changed the power boost valve to the original bosch fuel pressure regulator and guess what? the rough idle has stopped when car is still and i can already see a difference in fuel consumption. car always ran very smooth but now even feels a bit more healthier? anyone want to buy the booster valve? LOL

[delphincabby]

I dont worry bout how much fuel i use as i only pay 40p a litre, the advantages of working where i do

[Speedtouch]

Good for you dude

[bmwe30mtech]

how are you guys getting such bad economy? I see about 30mpg moterway driving in my sport, about 350 miles to a tank not run empty.

Get that power boost valve off it!

[StuBeeDoo]

xx miles per £xx petrol is a very inexact science. If you haven't got an OBC to tell you what your MPG is - fill it up, drive it how you normally do for a week (or it's nearly empty, whichever comes first) then fill it up again.
Then calculate your fuel consumption.....
Miles divided by number of litres to re-fill the tank multiplied by 4.546 to give actual MPG.

[bmania]

I dont worry bout how much fuel i use as i only pay 40p a litre, the advantages of working where i do

got any vacancies?

[delphincabby]

if ur a machanic or spanner monkey, come on down were really short