Ok I will check it out in the AM , if I disconnect the air house to that valve Combi if air pump noise goes away then it the valve's issue.
Is this electic solenoid a switch that turns on the vaccum to the combi valve?
Just trying to understand what the functions of items in question are.
THANKS Danny, did what you suggested,
Pulled the vac line from the combi valve and hose from air pump.
could not blow air from air pump hose, used hand vac on combi line and Combi valve opened up.
Now I have to wait for the engine to be cold and leave the aip pump hose on and use the hand vac.
If still noise will pull air pump hose..
Any thing else you can suggest?
Last is if it's the air pump how to get at it, small fingers???
danny sorry for late reply went on a business trip.
Worked on this last night.
Pulled the hose from the air pump and yes some noise went away.
But the air pump is very noisy even I turn off the engine pump whines on the slow down, seems like bearing noise.
So I think I have the two problems, like you said I think the valve is somewhat plugged not all the way but some restriction, with this seems the pump bearing are going.
I will check one more but I think you gave me good advice.
One last is how to pull these items seems area is tight and don't want to remove more then I have to.
If I accept does this close it out or shall I wait for your reply..
Danny finally got around to change combi valve, air pump, place new vac hose to combi valve to electric solenoid, clear code and then P0411 comes back, what else could be causing this code.
Again this is on the 1.8l turbo APH engine.
Yes the pump kicks on, seems also a P1128 error is now showing up.
So I believe you are on to the issue vac leak.
How best to find a vac leak?
Were should I test the vac and how much vac should I have, manual says 16-22 i believe.
Any suggestions on how to find where the vac leak is?
Danny I am a bit confused on the 5mm allen bolts to get to the lines.
If I take off the plastic cover with 10mm nuts I see the intake manifold with the vacuum lines.
I will take a picture tomorrow if you could point the area's out.
Or if you have a picture that would be great.
Don't have the P1128 again after clear only the p0411 came back on.
I did do a check of the MAF and seems it is at 3.3 at idle but not the 50-60 when driving.
Could all this problems with P0411 be the MAF??
Danny the picture is not showing up in the reply you sent.