I have number of codes here some I think I know what is wrong others I do not.

   #21  

Jack@European_Parts

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so using compressed air I can blow off two rubber gloves fitted over the tail pipes. I connected the combi vale and the SAI and turned it on and that also blew the rubber gloves off the tail pipes. (I suspect that previously when I only put my hand over one tail pipel it just forced the air out the other)

So as far as I can tell it all works so why am I getting that code?



Does the combi valve close and seal the air from blowing off the glove too?
 
   #22  

krisnordal

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without vacuum, there is no air. if I put vacuum on it opens the valve and the air passes into the exhaust.
 
   #23  

Jack@European_Parts

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without vacuum, there is no air. if I put vacuum on it opens the valve and the air passes into the exhaust.

GREAT!

Well did you plug it all in and run the readiness tests with VCDS one by one and complete a DCY at least twice?

Did you verify the switched vacuum is working to combi valve & when it is supposed to from intake vacuum?
 
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   #24  

vwtech

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Put a vac. gauge on vac. line to Kombi.
Start car cold do you have vac. to Kombi when SAI pump runs?
Do you have vac. going to the solenoid that supplies vac. to Kombi?
Does the solenoid supply vac. to Kombi?
These would be the next tests.

Good Luck
 
   #26  

krisnordal

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found the problem.
I had vacuum through the solenoid before. but when I removed the solenoid from the bracket I discovered the issue. Someone (not me) had broken the nipple off the solenoid and the glued the hose to the solenoid. So when I went to pull the hose from the selenoid it came apart in my hands.

It must have been sort of working but not pulling open the combi valve based how much manifold vacuum there was at any given RPM.
 
   #29  

krisnordal

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brief update.
I replaced the solenoid and that did the trick. but when I looked for vacuum leaks I figured out that "the guy" had re plumbed the vacuum lines in a weird way so I took it back to stock and it has a lot more power. one thing that he did was to connect the fuel regulator vacuum line directly to the SAIR solenoid. Input to input.

That took a while to figure out.
 
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