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940 L4-2.3L SOHC VIN 88 B230F (1992)

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Manifold Pressure/Vacuum Sensor > Component Information > Specifications > Page 2168

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Removing Protective Sleeve

5.

Remove connector protective sleeve and reinstall fuse #1 for testing.
CAUTION:^ Never check connections from the front. Connectors can get damaged and worsen the problem.

^ Check connections through the holes in the connector.
^ Connection pin numbers are printed on the connector side.

Installing Connector

6.

Disconnect intake manifold pressure sensor hose.

7.

Reconnect the ECU connector "loosely" to the fuel injection control unit.

Checking Voltage At Pin 7 And 11

8.

Turn ignition ON.

9.

Connect a voltmeter between ground and pin 11.

Reading: approx. 5 volts

If not, check power source and ground for ECU. Repair as necessary. If no fault can be found, replace and retest with new fuel injection ECU.

Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Manifold Pressure/Vacuum Sensor > Component Information > Specifications > Page 2168

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