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Engine Controls - Sensor Operating Range Charts: 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 it may cause driveability problems. To determine correct engine control system, see SYSTEM APPLICATION table.

SYSTEM APPLICATION

Application System
1.8L & 2.5L EEC
Cougar 4.6L, Mustang 3.8L & Thunderbird 4.6L EEC-V
All Others EEC-IV
NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. For sensor testing procedures, see appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE section below.