5000S Wagon L5-2226cc 2.22L SOHC (KZ) (1985)
Altitude Compensator: Testing and Inspection
ALTITUDE SENSOR CHECKING (5 CYLINDER ONLY)
Perform if differential pressure regulator current is incorrect based on altitude during test
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Remove wiring connector from differential pressure regulator
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Connect adapter VW 1315 All and multimeter US 1119 between differential pressure regulator and wiring connector
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Set multi meter to 200 mA scale
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Remove wiring connector from altitude sensor
Altitude sensor is located near electronic control unit in plenum chamber
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Turn ignition on
Differential pressure regulator current should be 10 +/- 2 mA
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Connect jumper wire between terminals #1 and #2 on sensor plug
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Differential pressure regulator current reads approximately 11 - 14 mA
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Disconnect jumper wire
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Reconnect jumper between terminals #1 and #3
Differential pressure regulator current reads approximately 0 - 4 mA
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If readings are OK, replace altitude sensor and adjust CO
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If readings are not OK, check wiring to control unit
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If wiring is OK, replace control unit