Secondary Air Injection Solenoid Valve, Checking

WARNING: This page is about a different car, the 2014 Volkswagen Beetle and 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Connector Test Set V.A.G 1594C
Assisting hose, for example coolant hose

Test sequence

NOTE:

Do not use compressed air during following check!

-- Remove the air filter (engine cover). Refer to AIR FILTER HOUSING .

-- Remove the pressure hose -2- from the Secondary Air Injection Solenoid Valve -N112- -3-. To do so, compress securing ring.

Fig 1: Identifying Secondary Air Injection Solenoid Valve N112 Electrical Harness Connector

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Pull off connector -4-.

-- Slide assisting hose -1-, for example coolant hose, into Secondary Air Injection Solenoid Valve -N112-.

-- Blow forcefully into the hose -arrow-.

The valve must be closed.

If air can be blown through valve with assisting hose properly sealed:

-- Replace the Secondary Air Injection Solenoid Valve -N112-.

If the valve is closed:

-- Connect terminals on connector connection -5- with adapter cables from Connector Test Kit V.A.G 1594C to battery positive (+) and negative (-).

-- Blow forcefully into the hose -arrow-.

The valve must be opened.

If air cannot be blown through the valve with a properly sealed hose:

-- Replace the Secondary Air Injection Solenoid Valve -N112-.