MG 2.0 efi Plenum Vacuum pipes

[n2oxide]

Gents,

MG 2.0 efi - my competion car. Just past the butterfly on the inlet plenum there are TWO 8mm vacuum hoses. The lower one goes to the ECU - can someone please tell me where the upper second one is meant to go to ?

Thanks

Perry

[Guest]

just looked at my Mg maestro and the top one goes to the ecu and the bottom one is plugged off!!

[G Force]

Hi, the second pipe is meant to go from the mixture adjustment air bleed connection to the connection on the standard airbox top.