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GTI, Jetta III 2.8L & Passat

WARNING: This page does not describe the selected car, but rather 125 other vehicles, including the 2010 Volkswagen Routan, 2009 Volkswagen Routan, 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, and 2000 Volkswagen EuroVan. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure engine coolant temperature is at least 122°F (50°C). Start and allow engine to idle. Disconnect vacuum hose from EGR valve. Connect a hand-held vacuum pump to EGR valve and apply vacuum.
  2. Idle quality should change noticeably. If idle quality does not change, check EGR valve and exhaust manifold for plugging. Replace EGR valve if necessary. After repairs, clear/erase DTC memory.
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