Secondary Air Injection

Hey guys.

My friend has a 2001 Beetle, not sure what size engine, that has set a P0411. Incorrect flow.

I have a Montana with a P0410 code.

Question: What is SAI, is it necessary, and how do we troubleshoot this system?

Also, I recorded some data, on an MD9001 (Matco) scantool, while at idle and up to 3G RPM. Is there any info that could be useful?

Mike

This New Beetle model years ranging from 1999 to 2002 knows many electronic problems and injection. I owned a similar model that made me spend a fortune to set well the injection!!!


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The air pumps are notorious for having cracked and failed gaskets. I suggest asking on a VW forum on exactly the best way to check. On mine I could feel the leak, but yours might be just at the beginning and is just tripping the sensor. Ask in the VW vortex
http://forums.vwvortex.com/forumdisplay.php?5-New-Beetle-amp-New-Beetle-Convertible