018-001   Specifications

General Information

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 WARNING 

This diagram is provided as a diagnostic tool for trained, experienced technicians only. Troubleshooting presents the risk of equipment damage, personal injury, or death. Troubleshooting must be performed by trained, experienced technicians. See important instructions in the service manual.

Electrical Specifications

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Data Link (Vehicle and Control)
Positive Wire to chassis ground, 4.0 to 5.0 VDC
Negative Wire to chassis ground, 0.0 to 1.0 VDC
All short to Ground
EPS and VSS circuits
O.K. (no short circuit) if > 10 Mohms
All Others
O.K. (no short circuit) if > 100 Kohms
All Continuity Checks
O.K. (no open circuit) if < 10 Ohms
Short Circuit to External Voltage
O.K. if < 1.5 VDC
5 V Power Supply (Sensor and Switch)
@ ECM, Sensor 4.75 to 5.25 VDC, Switch 4.20 to 5.25 VDC
@ Harness, Sensor 4.20 to 5.25 VDC, Switch 4.20 to 5.25 VDC
Solenoids
Fuel Shutoff Valve
Coil Resistance = 7 to 8 Ohms
Injectors
0.5 to 1.5 Ohms after subtracting the VOM resistance.
ECM Connector
Retaining Capscrew Torque = 2 N•m [18 in-lb]
Injector
Pigtail Retaining Nut Torque = 1.6 N•m [14 in-lb]

Sensor Specifications

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Vehicle Speed Sensor
Torque = 47 N•m [35 ft-lb]
First Coil = 750 to 1100 Ohms
Second Coil = 1100 to 1500 Ohms

    Accelerator Pedal (IVS, ISS, & TPS)

  • Idle Validation Circuit Resistance (For ON and OFF Idle States)
    • IVS – MAX Closed Circuit Resistance < 10 Ohms
    • ISS – MAX Closed Circuit Resistance < 125 Ohms
    • IVS, ISS – MIN Open Circuit Resistance > 100k Ohms
  • Accelerator Position Coil Resistance:
    • Between Supply and Return Pins = 2000 to 3000 Ohms
    • Between Supply and Signal Pins (Pedal Released) = 1500 to 3000 Ohms
    • Between Supply and Signal Pins (Pedal Depressed) = 200 to 1500 Ohms

NOTE: Released resistance minus depressed resistance
must be 100 ohms.

’91 Boost Pressure Sensor
Torque (Flange style) = 30 N•m [22 ft-lb], Torque (Threaded style) = 14 N•m [10 ft-lb]
Pressure (mmHg) Pressure [inHg] Voltage (VDC)
0 0 0.42 to 0.58
413.66 16.29 1.42 to 1.58
827.47 32.58 2.42 to 2.58
1241.20 48.86 3.42 to 3.58
1654.86 65.15 4.42 to 4.58
’94 Boost Pressure Sensor
Torque (Threaded style) = 14 N•m [10 ft-lb]
Pressure (mmHg) Pressure [inHg] Voltage (VDC)
0 0 0.42 to 0.58
646.48 25.45 1.42 to 1.58
1292.88 50.90 2.42 to 2.58
1939.36 76.35 3.42 to 3.58
2585.76 101.80 4.42 to 4.58
Engine Position Sensor
Torque = 20 N•m [15 ft-lb]
First Coil Resistance = 1000 to 2000 Ohms
Second Coil Resistance = 1000 to 2000 Ohms
Ambient Air Pressure Sensor
Torque (Flange style) = 23 N•m [17 ft-lb], Torque (Threaded style) = 14 N•m [10 ft-lb]
Altitude (m) Altitude [ft] Voltage (VDC)
0 (sea level) 0 4.00 to 4.58
915 3000 3.60 to 4.40
1829 6000 3.20 to 4.00
2744 9000 3.00 to 3.80
3659 12000 2.60 to 3.40
Voltage Output (± 60mV) = (Ambient Pressure [inHg] X 4.0V) + 30.54 [inHG] + 0.5v
Oil Pressure Sensor
Torque (Flange style) = 23 N•m [17 ft-lb], Torque (Threaded style) = 14 N•m [10 ft-lb]
Pressure (kPa) Pressure [psi] Voltage (VDC)
0 0 0.40 to 0.60
172.37 25 1.40 to 1.60
344.74 50 2.40 to 2.60
517.11 75 3.40 to 3.60
689.48 100 4.40 to 4.60
All Temperature Sensor
Torque = 14 N•m [10 ft-lb]
Temperature (C) Temperature (F) Resistance (ohms)
0 32 30K to 36K
25 77 9K to 11K
50 122 3K to 4K
75 167 1350 to 1500
100 212 600 to 675

Last Modified:  05-Nov-2007