volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Air Cleaner Housing > < Fuel Pressure Regulator and Residual Pressure, Checking|Page 977
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Idle Speed: Specifications

Technical Data

Engine data

2.5L 5Cyl 4V

Idle speed cannot be adjusted,

680 RPM

it is regulated by idle stabilization
Engine speed limitation by fuel

5800 RPM

injector shut-off
Fuel pressure: Fuel supply-pressure up to

Approx. 4.0 bar positive pressure

high-pressure pump, (is produced by an

(same under all operating conditions)

electric fuel pump in the fuel tank)
Fuel high pressure (produced by a

Approx. 49 bar positive pressure at idle.

mechanical single-piston pump) at approx. Approx. 120 bar positive pressure at
85 degrees coolant temperature

certain operating points.

Technical Data

Air Cleaner Housing > < Fuel Pressure Regulator and Residual Pressure, Checking|Page 977