Altitude COMPENSATOR Sensor: Tracer
Turn ignition on. Connect a vacuum pump to pressure sensor. Leave connector connected to sensor. Connect a voltmeter between Light Green wire and ground. With no vacuum applied to sensor, voltage should be zero. Apply 30 in. Hg to sensor. Voltmeter should indicate 3.5-4.5 volts.
NOTE:
For all other models, refer to appropriate article in 1988 COMPUTERIZED ENGINE CONTROLS section.