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Home >> Pontiac >> 1983 >> Grand Prix Base, 5.0 H >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor Tests W/Codes >> Chart 8: Vacuum Sensor Check

Chart 8: Vacuum Sensor Check

Fig 1: Chart 8: Vacuum Sensor Check Flow Chart
G248
Fig 2: Chart 8: Vacuum Sensor Check Flow Chart
GB0045594
BARO & NON-TURBO MAP

(1) Altitude Voltage Range
Below 1000 3.8-5.5V
1000-2000 3.6-5.3V
2000-3000 3.5-5.1V
3000-4000 3.3-5.0V
4000-5000 3.2-4.8V
5000-6000 3.0-4.6V
6000-7000 2.9-4.5V
7000-8000 2.8-4.3V
8000-9000 2.6-4.2V
9000-10000 2.5-4.0V
(1) If voltage does not immediately follow vacuum change, sensor is faulty.
TURBO MAP

(1) Altitude Voltage Range
Below 1000 1.7-3.2V
1000-2000 1.6-3.0V
2000-3000 1.5-2.8V
3000-4000 1.4-2.7V
4000-5000 1.3-2.6V
5000-6000 1.3-2.5V
6000-7000 1.2-2.5V
7000-8000 1.1-2.4V
8000-9000 1.1-2.3V
9000-10000 1.0-2.2V
(1) If voltage does not immediately follow vacuum change, sensor is faulty.