Touareg V8-4.2L (AXQ) (2006)
Special tools, testers and auxiliary items required
‹› Remote control (VAG1348/3A) with adapter cable (VAG1348/3-2)
‹› Tester for quantity of injected fuel (VAG1602)
Without illustration:
‹› Connector test kit (VAG1594A)
Test requirements
‹› Fuel pressure must be OK, check --> [ Fuel Pressure Regulator and Residual Pressure, Checking ] See: Computers and Control Systems/Testing
and Inspection/Component Tests and General Diagnostics/Component Tests (SAE Code Charts)/Fuel Pressure Regulator and Residual Pressure,
Checking.
‹› Ignition switched off.
Test sequence
Observe Safety Precautions: --> [ Safety Precautions ] See: Computers and Control Systems/Service Precautions/Safety Precautions
Observe Clean Working Conditions: --> [ Clean Working Conditions ] See: Computers and Control Systems/Service Precautions/Clean Working
Conditions
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Remove the fuel rail completely along with the fuel injectors (fuel supply line remains connected).
‹› Checking for proper seal.
‹› Check injection quantity.