Laser FWD L4-1997cc 2.0L DOHC (1992)
Barometric Pressure Sensor: Testing and Inspection
Barometric Pressure Sensor Circuit
To test the Barometric Pressure Sensor, located on the air flow sensor, in the air cleaner housing, proceed as follows.
COMPONENT TEST
1. Connect a voltmeter between terminals 4 and 5 of the AFS Sensor connector.
Terminal 5: Barometric sensor output
Terminal 4: sensor ground
Terminal 3: sensor 5v power
Voltage (W/ key on and engine off)
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At sea level
Approximately 4.0 volts.
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At 2,000 ft.
Approximately 3.75 volts.
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At 4,000 ft.
Approximately 3.50 volts.
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At 6,000 ft.
Approximately 3.25 volts.
2. Warm the engine and bring it to a normal idle.
