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[tmx]

Have been having a few problems with poor running and bad fuel economy with my mv6 had a look under the bonnet and have noticed a multiram vacuum lead is broken and so has the ECU plug part of it

its the one on the front it opens a flap up to make both intakes one! the connector that the lead plugs into a little solonoid with an ECU plug and another vacuum plug its made by EATON i replaced it with one off a 2.5 at a scrappie same p/n so assume its the same

what does it do? and is it the reason why my mig does 15mpg!

[TheBoy]

It adjusts the inlet length, to flatten the torque curve

[tmx]

it does feel more tourqey is there anyway of testing the multiram?

[HerefordElite]

Have been having a few problems with poor running and bad fuel economy with my mv6 had a look under the bonnet and have noticed a multiram vacuum lead is broken and so has the ECU plug part of it

its the one on the front it opens a flap up to make both intakes one! the connector that the lead plugs into a little solonoid with an ECU plug and another vacuum plug its made by EATON i replaced it with one off a 2.5 at a scrappie same p/n so assume its the same

what does it do? and is it the reason why my mig does 15mpg!

no that's just the way you drive Tom

[johnnycboy]

it does feel more tourqey is there anyway of testing the multiram?

tmx

iirc, give the throttle a good blip should operate at about 4000rpm.

hth

[Marks DTM Calib]

It increases low down torque quite considerably, this will help cruising mpg