Fulltext TSBs

Technical Service Bulletins

TSB
97-22-1
  • DELTA PRESSURE FEEDBACK EGR (DPFE) – DIAGNOSTIC TIPS
Publication Date: OCTOBER 27, 1997

FORD:
1994-1997 MUSTANG, THUNDERBIRD
1995-1997 CONTOUR, CROWN VICTORIA
1996-1997 ESCORT, TAURUS
LINCOLN-MERCURY:
1990-1997 TOWN CAR
1994-1997 COUGAR
1995-1997 CONTINENTAL, GRAND MARQUIS, MYSTIQUE
1996-1997 SABLE, TRACER
LIGHT TRUCK:
1994-1997 EXPLORER
1995-1997 ECONOLINE, F-150-350 SERIES, WINDSTAR
1996-1997 AEROSTAR
1997 EXPEDITION, MOUNTAINEER
1998 NAVIGATOR

ISSUE:

The current DPFE sensor diagnostic reference values as published in the Powertrain Control/Emissions Diagnosis (PC/ED) Service Manual, and also accessed by either the Service Bay Diagnostic System (SBDS) or Service Bay Technical System (SBTS), can lead to the replacement of good DPFE sensors.

ACTION:

Use the following revised DPFE sensor voltage ranges for all (black plastic or aluminum) DPFE system applications when checking the PID (Parameter Identifier Display) value “DPFEGR” or when measuring the DPFE sensor input directly at the breakout box. Refer to Figure 1.




Figure 1 – Article 97-22-1

NOTE:THESE LISTED VOLTAGE RANGES SHOULD BE USED FOR ALL (BLACK PLASTIC OR ALUMINUM) DPFE SYSTEM APPLICATIONS WHENEVER CHECKING THE PID VALUE “DPFEGR” OR WHEN MEASURING THE DPFE SENSOR INPUT DIRECTLY AT THE BREAKOUT BOX.


TYPICAL DIAGNOSTIC REFERENCE VALUES
MEASURED/PID VALUES
Sensors/InputsPCM/Breakout
Box
Pin/PID only
KOEOHot Idle48 Km/H
(30 MPH)
88 Km/H
(55 MPH)
Units
Measured/PID
DPFEGR650.2-1.30.2-1.30.2-4.50.2-4.5DCV

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Information Only

OASIS CODES:

690000, 698298


Copyright © 1997 Ford Motor Company