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I have a very unusual problem in my 1996 960 198k miles.
To make a long story short I get “check engine light”. The code triggered tells me that the secondary air intake system is faulty. The mechanic that I take my Volvo to after reading the code, (I believe it was P0108 I might be wrong), said that that code means the air pump might not work. Well we found out that the pump works just fine. The EGR valve was replaced and the pipes were replaced also. I keep getting the code after driving for a week, or some times two. The wired thing is that in summer time I do not have this problem. I guess it is because the secondary air intake is used only in cold starts at cold temperatures. The car runs reach when I get the light so I reset the code by disconnecting the battery.
Now that I gave some background to my trouble, I was wondering if anyone has any idea to what might be wrong. Keep in mind that everything was replaced with a new part in the system. Also is there a way for the hole that takes this mixture of air and exhaust to the cylinders to get clogged? If it does how do I unclog it? Any ideas?
I know that this problem sound like the one 850’s have code P0410, but the remedy for the 850’s does not help me.
Thank you in advance, Vlonjati
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Secondary air intake system problem 960 1996 [900][1996]