Customer: 2004 vw new beetle checking power to the n112 valve Mechanic's Assistant: Any other details you'd like to add? Customer: the secondary air pump does not start when the engine is cold, it often starts when the engine has been running for some time.

4. Manually activate the secondary air injection solenoid valve N112, with the engine at idle, and verify that manifold vacuum is available at the combination valve vacuum line. 5. Failure of any one of the tests can cause the code P0411 to set. Late Style System with Pressure Activated Combination valve: 1.

B. Force air into the cylinder head. (Either by removing the N112 valve and using shop air or by manually activating the N112 valve and V101 pump.) C. Turn the engine over by hand. As each cylinder comes up on the exhaust stroke, air should be felt coming from the spark plug hole. Equal amounts of air should be felt from all spark plug holes.

Customer: 2006 beetle with 2.5. po4011 . bench tested combo valve and secondary air pump motor. both work. on cold start up pump doesn't run and can not feel combivalve solenoid pick up.

3. Secondary Air Injection (AIR) solenoid valve (N112) 4. To Secondary Air Injection (AIR) solenoid valve. 5. To T-piece on intake manifold. 6. Check valve. 7. Intake manifold change over valve. 8. To vacuum reservoir in left wheel well. 9. From T-piece on intake manifold. 10. Fuel pressure regulator

VW FastTrack '00-'01, VW Academy Chicago and Seattle '00-present, VW Certified 4,343 Satisfied Customers I'm trying to find a part number to the hoses that go to my

4. To determine if the valve is leaking at the seat, install a scanner and with the engine running at idle access data group 033, unplug the N112 Secondary Air solenoid Valve and energize the air pump. 5. Block 033 should show no sudden change in percentage or voltage.

2009 vw rabbit 2.5 cbua combi valance solenoid n112 wire harness connectors touched one another and caused more cel Mechanic's Assistant chat Customer: 2009 vw rabbit 2.5 cbua combi valance solenoid n112 wire harness connectors touched one another and caused more cel

wait,the n112 is the solenoid valve with the electrical connector correct? the secondary air valve is actually a much larger metal valve, looks kinda like an EGR valve take the metal valve off and check it to make sure the valve seats properly and clean it.Dana40101.106130787

Customer: I have a 2000 VW Passat Wagon with a V6(2.8L) engine and I have codes P1423 and P1411 on. I have replaced the Kombi valves, SAIP, new vacuum lines and replaced all the plastic cracked hoses with new ones and the code wont go away.