2005 Beetle 2.0L BEV engine. How do I test the secondary air injection check valve. All the stuff I'm coming up with says to do a vacuum check but this check valve doesn't have a vacuum line to it. It just has the air pump line attached to it and the steel line coming up from the exhaust. The manuals and forums say this is supposed to be a kombi valve that is both the egr valve and secondary air valve. But I don't see how it can be an egr valve because exhaust gases aren't being routed back into the engine. My car is experiencing symptoms like an intermittent stuck egr valve. Car starts up and runs fine. If I stop at a store for 5 or ten minutes and then come out and try to start it it starts but will run real rough, the engine won't rev up, it will miss real bad, stink like it's too rich and will often keep stalling. If I let the car set for 20 minutes or more it will start right up. I get no codes showing using an OBD2 scanner. I had similar problems on older American cars and it was usually a sticky egr valve.
Would the secondary air check valve cause this problem? From what I can see the secondary air valve's only job is to let the air pump force air into the exhaust and keep the exhaust air from forcing its way back into the air system. I can't find any reference to an egr valve on the BEV engine literature. Can anyone kick me in the right direction? Here's a pic of my secondary air check valve.
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Would the secondary air check valve cause this problem? From what I can see the secondary air valve's only job is to let the air pump force air into the exhaust and keep the exhaust air from forcing its way back into the air system. I can't find any reference to an egr valve on the BEV engine literature. Can anyone kick me in the right direction? Here's a pic of my secondary air check valve.
