Checking Components; Check Fuel Holding Pressure Upstream Of High-Pressure Pump - Volkswagen Amarok 2011 Workshop Manual

4-cylinder injection engine (2.0 l direct injection engine, turbocharger) - Edition 02.2011
3

Checking components

3.1 Check fuel holding pressure upstream
of high-pressure pump
Special tools and workshop equipment required
♦ K-Jetronic pressure tester -V.A.G 1318-
♦ Measuring container, fuel-resistant
♦ Protective gloves
Test prerequisites
• Battery voltage at least 12.5 V
• Fuel filter OK.
•
1
Fuel tank at least / 4 full.
• Fuel pump control unit -J538- OK.
• Ignition switched off.
Checking fuel pressure
WARNING
♦ The pressure in the high-pressure part of the injection
system must be reduced to a residual pressure
⇒ page 161 .
♦ A clean cloth must then be wrapped around the connec‐
tion and the residual pressure dissipated by carefully loos‐
ening the connection.
– Release clip -2- and detach fuel line -3- from high-pressure
pump -1-.
Amarok 2011 ➤
229
3. Checking components