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Old 12th January 2018, 07:54   #7
Mgaz
Gets stuck in
 
MG ZT190, MG ZS TD, MGF VVC, R200 TD bubble, Austin A35

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Quote:
Originally Posted by SD1too View Post
No, it's much more complicated than that Gareth. The VIS system 'tunes' the inlet tracts and is triggered not only by throttle position but by the rate of change of the throttle opening.

Have you begun with checking that the power VIS actuator is correctly meshed with the power valves operating lever? Have you checked that both actuators are working and that the balance flap isn't sticking mid travel? These are all very common occurances.

Simon
well, the thing is, I am interested in buying a car with the rattle.

But its a few hours away, so i can't check any of those things.

Just trying to work out if Im going to be able to fix it. As it is £500 for a new inlet by the looks of it.
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