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Turbo
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61 Posts
You will find the small vac unit just under the main throttle body, check the pipes for leaks of it may have perished and broken, if the pipe is ok and has a vac when engine ticking over the the small vac unit may have gone faulty, other possibilty is that they secondries are stuck with carbon/oil deposits. hope this helps!!
 

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Megger
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54 Posts
there is no vacum to that i pulled off the pipe on the bottom of the actuater and there is no vacum at all av currently got the secondaries permantly closed by taking out the linkage that opens and closes them. this is the only way the car will run.the secondaries hav been cleaned and are moving freely
 

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Turbo
Joined
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61 Posts
mmm, no vac at all from the pipe, with engine ticking over there should be quite a good suck from that. Tracing the pipe back to its end and pipe in tact no kinks or bends? there is a vac pipe on the fuel regulator, this also should have a good suck, try using a t-piece into that to see if its all working correctly??!!
 

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Megger
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54 Posts
Discussion Starter · #5 ·
sorry mate neva tryed to see if it had vacum ren running but the engine does not need to be turned ova to close them so where does it get the vacum from this a no cause wheneva a clen the secondaries a turn the igition on to close them to clean the top of the flaps
 

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Turbo
Joined
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61 Posts
With the engine ticking over there should be max vac on the system and secondries will close up. When the engine is revved and under pressure the vac is less allowing them to open. So on tick over you should have a good suction on the pipe, if there is then they should work fine, if not then i would suggest the vac pump is faulty which can easily be tested via a pipe on the vac unit and just suck the pipe, if the secondries don't close then the vac unit is faulty.......
 

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Turbo
Joined
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61 Posts
Well if the vac pipe is ok and the vac unit ok then they have to work! Have you had fault codes read on it in case there is another problem else where? Can some times be a good short cut to finding a fault :woot:
 

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Turbo
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61 Posts
Yes its connected directly onto the lim, single pipe coming from it?
 
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