200 Quattro Wagon L5-2226cc 2.22L SOHC Turbo (MC) (1989)
FREQUENCY VALVE
Pin 9 to 8
Cold ........................................................................................................................................................................................... 60 - 70% Duty Cycle
Warm ........................................................................................................................................................................................ 45 - 55% Duty Cycle
When the engine is warmed up the duty cycle will vary between 45 and 55% in closed loop.
FUEL PUMP RELAY
Pin 9 to 21
Key ON .......................................................................................................................................................................................................... 11 - 13V
Cranking ................................................................................................................................................................................................................ <2V
Idling ............................................................................................................................................................................................................ 0.0 - 1.0V
OXYGEN SENSOR
Pin 9 to 30
Key ON ........................................................................................................................................................................................................ 0.4 - 0.5V
Engine 2000 rpm .......................................................................................................................................................................................... 0.1 - 0.8V
-
O2 sensor must warm up before varying between .10 and .80 volts.
-
Before engine goes into closed loop voltage will be .45 on pin #30.
COLD START VALVE
Pin 9 to 1
Cool engine (cranking) ................................................................................................................................................................................. 0.0 - 1.0V
Cold start valve will shut off while cranking in less than 4 secs.
Warm engine (cranking) .................................................................................................................................................................................. 9 - 11V
BOOST PRESSURE LIMIT SOLENOID
Closed ............................................................................................................................................................................................................... 11 - 14.5V
Opened ............................................................................................................................................................................................................... 0.0 - 1.0V
CARBON CANISTER SHUT OFF VALVE
Pin 9 to 23 (engine idling) ................................................................................................................................................................................... 11 - 13V
BRAKE LIGHT SWITCH
Pin 9 to 32
Brakes applied ............................................................................................................................................................................................... 11 - 13V
Brakes not applied ....................................................................................................................................................................................... 0.0 - 1.0V
CARBON CANISTER PURGE VALVE
Pin 9 to 3 (Key ON) ............................................................................................................................................................................................. 11 - 13V