GM Service Manual Online
For 1990-2009 cars only

Percent Fuel¹

PWM Output²

10%

17

20%

33

30%

45

40%

52

50%

56

60%

59

70%

62

80%

64

90%

67

100%

70

¹ This is the percentage of fuel the gage will display

²This is the PWM output required to display the percentage of fuel