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Old 26th May 2010, 21:54   #4
rrobson
I really should get out more.......
 
75 tourer cdti, MG ZS 180, nissan terrano & 1.8t rover 25

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Quote:
Originally Posted by Clickernick View Post
It goes back in the OPEN position, as it is open at engine start up and idle up to about 3,100 rpm.

You may need to 'reset' your bal vis by pluging in vis before attaching to the plenum and activating by turning on the ignition. This will reset a 'good' vis motor to its starting position. Same routine for the power vis too.
isnt it closed under normal driving conditions? i thought it opened at around 3000rpm, which allowed air pressure and amount to 'balance' between the two banks
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