Fuel Pressure Regulator Valve -N276- , Checking

WARNING: This page is about a different car, the 2012 Volkswagen Touareg and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Follow the guidelines for a clean working environment when working on the fuel system. Refer to CLEAN WORKING CONDITIONS AND FUEL SYSTEM WORK INSTRUCTIONS .
Always follow these rules before and during work.

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Disconnect the fuel return line -1- .

Fig 1: Identifying Fuel Return Line -1-

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-- Seal the open return line connection with a plug -1- .

Fig 2: Identifying Plug -1- On Return Line Connection Hose To Open Return Line Connection -2-

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-- Attach a hose to the open return line connection -2- .

-- Hold his hose -2- in a suitable container in order to measure the return quantity.

-- Perform the test at starter speed.

Specified value: the return quantity is 0 ml while the starter is turning

If the specified value is not attained, then the Fuel Pressure Regulator Valve -N276- is faulty.