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Home/GMC/Yukon Denali/GMC Yukon Denali GMT800 (1999-2006)/Repair manual/Sensor Range Charts/Engine Controls - Sensor Operating Range Charts
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Engine Controls - Sensor Operating Range Charts GMC Yukon Denali GMT800

Sensor Range Charts ~160 words

INTRODUCTION

Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but may cause driveability problems.

Note. Unless stated otherwise in test procedure, perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.

Throttle Position(1) Volts
At Idle
APP Sensor No. 10.94
APP Sensor No. 24.55
Wide Open Throttle
APP Sensor No. 14.25
APP Sensor No. 22.90
(1) Measured at sensor or as seen on scan tool.
(1)Measured at sensor or as seen on scan tool.

ACCELERATOR PEDAL POSITION SENSOR VOLTAGE (2.2L - SATURN)

Throttle Position(1) Volts
At Idle
APP Sensor No. 10.98
APP Sensor No. 20.49
Wide Open Throttle
APP Sensor No. 14.16
APP Sensor No. 22.08
(1) Measured at sensor or as seen on scan tool.
(1)Measured at sensor or as seen on scan tool.

ACCELERATOR PEDAL POSITION SENSOR VOLTAGE (3.0L)

Throttle Position(1) Volts
At Idle
APP Sensor No. 1Less Than 1.1
APP Sensor No. 2Greater Than 3.9
Wide Open Throttle
APP Sensor No. 1Greater Than 2.0
APP Sensor No. 2Less Than 3.0
(1) Measured at sensor or as seen on scan tool.
(1)Measured at sensor or as seen on scan tool.

ACCELERATOR PEDAL POSITION SENSOR VOLTAGE (4.2L)

Throttle Position(1) Volts
At Idle
APP Sensor No. 1Less Than 1.0
APP Sensor No. 2Greater Than 4.0
APP Sensor No. 3Greater Than 3.8
Wide Open Throttle
APP Sensor No. 1Greater Than 2.0
APP Sensor No. 2Less Than 2.9
APP Sensor No. 3Less Than 3.1
(1) Measured at sensor or as seen on scan tool.
(1)Measured at sensor or as seen on scan tool.

ACCELERATOR PEDAL POSITION SENSOR VOLTAGE (4.8L, 5.3L, 6.0L & 8.1L)

Throttle Position(1) Volts
At Idle
APP Sensor No. 1.44-.95
APP Sensor No. 23.9-4.5
APP Sensor No. 33.6-4.1
At 2500 RPM
APP Sensor No. 1.75-1.25
APP Sensor No. 23.7-4.3
APP Sensor No. 33.5-4.0
(1) Measured at sensor or as seen on scan tool.
(1)Measured at sensor or as seen on scan tool.

ACCELERATOR PEDAL POSITION SENSOR VOLTAGE (6.5L & 6.6L)

Percent Fuel (1)(2) PWM Output
1017
2033
3045
4052
5056
6059
7062
8064
9067
10070
(1) This is the percentage of fuel the gauge will display. (2) This is the PWM output required to display the percentage of fuel.
(1)This is the percentage of fuel the gauge will display.
(2)This is the PWM output required to display the percentage of fuel.

FUEL GAUGE PULSE WIDTH MODULATION OUTPUT (CNG)

Psi (KPa)Volts
0 (0)0.5
10 (68.95)0.9
20 (137.90)1.3
30 (206.85)1.7
40 (275.80)2.1
50 (344.75)2.5
60 (413.70)2.9
70 (483.65)3.3
80 (551.60)3.7
90 (620.55)4.1
100 (689.50)4.5

FUEL RAIL PRESSURE SENSOR OUTPUT VOLTAGE VS PRESSURE (CNG)

Temperature - °F (°C)VoltsOhms
58 (-58)4.971,579,500.00
40 (-40)4.931,070,550.00
4 (-20)4.74186,000.00
32 (0)4.2455,620.00
50 (10)3.8132,100.00
68 (20)3.2919,185.00
77 (25)3.0015,000.00
86 (30)2.7111,818.50
95 (35)2.429376.50
104 (40)2.147489.50
113 (45)1.886021.00
122 (50)1.644870.50
140 (60)1.233250.50
158 (70)0.912218.50
176 (80)0.671543.50
212 (100)0.37789.75
248 (120)0.21433.80
293 (145)0.11220.95

FUEL RAIL TEMPERATURE SENSOR OUTPUT RESISTANCE VS TEMPERATURE VS VOLTAGE (CNG)

Psi (KPa)Volts
0 (0)0.50
125 (862)0.63
438 (3021)0.94
750 (5172)1.25
1063 (7331)1.56
1375 (9483)1.88
1688 (11,641)2.19
2000 (13,793)2.50
2313 (15,952)2.81
2625 (18,103)3.13
2938 (20,262)3.44
3250 (22,414)3.75
3563 (24,572)4.06
3875 (26,724)4.38
4000 (27,586)4.54

FUEL TANK PRESSURE SENSOR OUTPUT PRESSURE VS VOLTAGE (CNG)

Temperature - °F (°C)VoltsOhms
58 (-50)4.87104,390
40 (-40)4.7757,536
4 (-20)4.3819,326
23 (-5)3.869311
32 (0)3.657407
41 (5)3.425933
50 (10)3.184764
59 (15)2.933881
68 (20)2.683167
77 (25)2.432600
86 (30)2.202148
95 (35)1.971784
104 (40)1.761489
113 (45)1.571249
122 (50)1.391052
140 (60)1.08758
158 (70)0.84556
176 (80)0.66414
212 (100)0.40240
248 (120)0.26147
302 (150)0.1477

FUEL TANK TEMPERATURE SENSOR RESISTANCE VS TEMPERATURE VS VOLTAGE (CNG)

Temperature - °F (°C)(1) Ohms
302 (150)47
284 (140)60
266 (130)77
248 (120)100
230 (110)132
212 (100)177
194 (90)241
176 (80)332
158 (70)467
140 (60)667
122 (50)973
113 (45)1188
104 (40)1459
95 (35)1802
86 (30)2238
77 (25)2796
68 (20)3520
59 (15)4450
50 (10)5670
41 (5)7280
32 (0)9420
23 (-5)12,300
14 (-10)16,180
5 (-15)21,450
4 (-20)28,680
22 (-30)52,700
40 (-40)100,700
(1) Measure resistance across sensor terminals.
(1)Measure resistance across sensor terminals.

SENSOR TEMPERATURE VS RESISTANCE (EXCEPT TRACKER)

Temperature - °F (°C)(1) Ohms
176 (80)315
158 (70)435
140 (60)580
122 (50)810
113 (45)940
104 (40)1150
95 (35)1360
86 (30)1600
77 (25)2000
68 (20)2400
59 (15)3000
50 (10)3600
41 (5)4600
32 (0)5700
23 (-5)7400
14 (-10)9800
5 (-15)12,700
4 (-20)16,000
(1) Measure resistance across sensor terminals.
(1)Measure resistance across sensor terminals.

SENSOR TEMPERATURE VS RESISTANCE (TRACKER)

Throttle Position(1) Volts
At Idle1.0-1.5
Wide Open Throttle4.0-4.9
(1) Measured at sensor or as seen on scan tool. Ensure sensor output changes instantly when intake manifold vacuum is applied and released.
(1)Measured at sensor or as seen on scan tool. Ensure sensor output changes instantly when intake manifold vacuum is applied and released.

MAP SENSOR VOLTAGE

Throttle Position(1) Volts
At Idle
Models Without Electronic Throttle Control0.4-0.9
Models With Electronic Throttle Control
TP Sensor No. 14.8-4.3
TP Sensor No. 20.4-0.9
Wide Open Throttle
Models Without ElectronicThrottle ControlGreater Than 4.0
Models With Electronic Throttle Control
TP Sensor No. 1Less Than 1.0
TP Sensor No. 2Greater Than 3.5
(1) Measured at sensor or as seen on scan tool.
(1)Measured at sensor or as seen on scan tool.

THROTTLE POSITION SENSOR VOLTAGE