1982 Lincoln Town Car BaseFACTORY OEM SERVICE PROCEDURE

Oxygen Sensor Test (Carburetor Only)

  1. With engine at operating temperature but stopped, disconnect oxygen sensor connector. Start engine and run on high step of fast idle cam for 1 minute.
  2. Connect voltmeter between ground and sensor, then depress carburetor control vacuum regulator (CVR) rod for 10 seconds. Voltage should be more than 0.5 volts.
    EEC III COMPONENT RESISTANCE VALUES

    Component Wire Colors Resistance (Ohms)
    Crankshaft Position (CP) Sensor Gray-Dk Blue 100-640
    Engine Coolant (ECT) Sensor Lt Grn/Yel-Blk/Wht 1100-8000
    Air Charge Temperature (ACT) Sensor (EFI) Lt Grn/Ppl-Blk/Wht 1700-60, 000
    Throttle Position (TP) Sensor
    Closed Throttle Org/Wht-Blk/Wht 3000-5000
    Closed Throttle Dk Grn/Lt Grn-Blk/Wht 550-1100
    Wide Open Throttle Dk Grn/Lt Grn-Blk/Wht More than 2100
    EGR Control Solenoid Red-Yel More than 30
    EGR Vent Solenoid Red-DkGrn More than 30
    TK Solenoid Red-Red/Lt Grn More than 45
    TAB Solenoid Red- Wht/Red 45-90
    TAD Solenoid Red-Lt Grn/Blk 45-90
    Fuel Pump Relay Red-Tan/Lt Grn More than 40
    By-Pass Ballast Resistor ..... Less than 3
    Feedback Motor (FBCA) (1) 32-150
    (1) Measured from center terminal (above blank) to each other terminal.
  3. Run engine at fast idle for 1 minute with PCV valve disconnected. Measure oxygen sensor voltage. Voltage should be less than 0.5 volts.
  4. If oxygen sensor does not function as described, retest. If voltage readings are still incorrect, replace sensor. Tighten sensor to 27-33 ft. lbs.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.