EVP Sensor - Manual Revision: Overview

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ENGINE EMISSIONS DIAGNOSTIC MANUALS, VOLUME H - 1985 THROUGH 1989 - EGR VALVE POSITION SENSOR (EVP) DIAGNOSTIC PROCEDURES REVISED

Article No. 89-18A-9

FORD: 1985-89 CROWN VICTORIA, ESCORT 1985-88 EXP 1985-86 LTD 1985-89 MUSTANG, TEMPO, THUNDERBIRD 1986-89 TAURUS 1988-89 FESTIVA 1989 PROBE

LINCOLN-MERCURY: 1985-86 CAPRI
1985-89 CONTINENTAL, COUGAR, GRAND MARQUIS 1985-87 LYNX 1985-89 MARK VII 1985-86 MARQUIS 1985-89 TOPAZ, TOWN CAR 1986-89 SABLE 1987-89 TRACER

MERKUR: 1986-89 XR4TI 1988-89 SCORPIO

LIGHT TRUCK: 1985-89 BRONCO, BRONCO II, ECONOLINE, F-150, F-250, F-350, RANGER 1986-89 AEROSTAR

ISSUE: The EGR Valve Position Sensor (EVP) diagnostic procedures in 1985 through 1989 Engine Emissions Diagnosis Shop Manuals, Volume H, have been revised. EVP Sensors may exhibit internal wear problems that can cause driveability symptoms and display a Continuous Self-Test Code 32. This is not associated to correcting the problem using the existing diagnostic procedures.

ACTION: Refer to the pages following this TSB article for the revised diagnostic procedures.

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 680000