Audi Workshop Service and Repair Manuals

Pin 31 to 35

Closed ..............................................................................................................................................................................................................  8 - 12V
Open .............................................................................................................................................................................................................  0.0 - 0.5V

AIR FLOW POTENTIOMETER

Pin 23 to 35

At rest ...........................................................................................................................................................................................................  0.1 - 0.5V
Open (Idle) ...................................................................................................................................................................................................  0.8 - 1.2V

ELECTRO-HYDRAULIC ACTUATOR

Pin 4 to 35 ..........................................................................................................................................................................................................  1.1 - 1.3V

Temperature effects this reading.

Pin 5 to 35 ..........................................................................................................................................................................................................  3.0 - 3.9V

OXYGEN SENSOR

Pin 7 to 35

Key ON ........................................................................................................................................................................................................  0.4 - 0.5V
Engine Idling ................................................................................................................................................................................................  0.1 - 0.8V

TRANSMISSION SWITCH

Engine idling

Pin 34 to 35 (A/T only in P/N) .........................................................................................................................................................................  9 - 11V

COLD START VALVE

Pin 16 to 35

Cool engine (cranking) .......................................................................................................................................................................................  0 - 1V

(4 sec) 15k resistor in place of the coolant sensor will allow testing of the cold start injector.

Warm engine (cranking) ..................................................................................................................................................................................  8 - 11V