LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1989 >> Taurus SHO >> Repair and Diagnosis >> Engine Performance >> System >> 3.0L CEC Tests W/Codes >> Quick Test >> Resistance/Volt Charts
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Resistance/Volt Charts

ECA INPUT SENSOR RESISTANCE & PIN VOLTAGE REFERENCE CHART

Application  Breakout Box Pin# + / -  KOEO Ohms  KOEO Volts  KOER Volts 
Engine Coolant Temperature (ECT) 7/46 1700-3600 N/A .74-.31
Throttle Position Sensor (TPS) 47/46 500-1200 .7-1.3 0.7-1.3
Pressure Feedback EGR (PFE) 27/46 N/A 3.0-3.5 3.0-3.5
EGR Valve Position (EVP) 27/46 480-650 .30-.45 .30-.45
Heated Exhaust Gas Oxygen (HEGO) 29/46 1.5 Milliohms 0.4 (Maximum) 0-0.9
Coil Tach Signal (IDM) 4/16 21,800 8.0-10.0 8.0-12.0
Dist. Position (PIP) 56/16 1100-2100 N/A 3.0-7.0
Reference Voltage (VREF) 26/46 " 5.0 5.0
Vehicle Speed Sensor (VSS) 3/6 190-240 N/A N/A
Knock Sensor (KS) 23/46 4500-6500 N/A N/A
ECA OUTPUT SENSOR RESISTANCE & PIN VOLTAGE REFERENCE CHART

Application  Breakout Box Pin# + / -  KOEO Ohms  KOEO Volts  KOER Volt 
Idle Speed Control Motor (ISC) 37/21 10.3 0.0 3.0-5.0
Fuel Pump Relay (FP) 37/22 N/A 0.0 Battery +
Spark Advance (DIS) 36/16 N/A 9.0-12.5 8.5-9.5
Spark Advance (TFI) 36/16 N/A 0.0 5.0-7.0
EGR Valve Regulator (EVR) 37/33 40-50 0.0 (Off) 0.0 (Off)