MPG

[stel g60 0]

i need some help guys with a petrol issue, my mpg on mfa setting 1 is reading between 8 and 10 mpg. on setting 2 it sits on about 18 though. im doing only town driving at the minute but not that much and definately not enough to hit 8mpg. car does need a service admitedly inc new plugs but would it drink that much? has anyone got any ideas?

[JBOB 0]

Id check that the vac pipe for the MFA is still attached to the back of the clocks.

[Phil K 0]

Having a similar problem with mine - resetting the clocks at 80 gives me a whole 4.2mpg :shock:

 

I've had engine out though so am wondering if the vacume pipe in the engine bay is off... anyone know where it goes?

[stevemac 0]

Phil K, U sure your's is vacuum operated ?

 

VR6's are definitely electrically operated & I'm not sure about 2.0-16v's

[stevemac 0]

Id check that the vac pipe for the MFA is still attached to the back of the clocks.

Worth checking the other end of the pipe too - it attaches to the valve on the brake servo vacuum pipe - next to the ISV.

[JBOB 0]

Id check that the vac pipe for the MFA is still attached to the back of the clocks.

Worth checking the other end of the pipe too - it attaches to the valve on the brake servo vacuum pipe - next to the ISV.

 

You mean i said something right :lol:

[Phil K 0]

stevemac, no idea at all :lol:

 

I hope it's a vacume pipe cos the alternative will be more hastle knowing my luck :?

[stevemac 0]

Phil K, I know we're kind of hi-jacking Stel's thread here but if you remove the clocks (only 4 screws to undo) you'll see if there's a vac pipe connection on the back of them.

 

If there is & it has a vac pipe plugged onto it, possibly your garage has connected the other end to the wrong part of the vac system in the engine bay ?

 

On a G60, it plugs into the brake servo vac pipe valve - not sure on yours though. Bentley manual only has details for US spec G60's & 2.8 VR6's.

[StuartFZR400 0]

Do you care what it says?

 

Mine is out , saying 25mpg, when im getting 29. Just work it out when you fill-up, and ensure you're not getting those silly figures. Then maybe you could pursue the mfa problem.