Contour L4-122 2.0L CNG DOHC VIN Z SFI (1996)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Engine - Surging/Stalls During Acceleration
Article No.
96-23-3
11/04/96
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STALLS - STALLING DURING ACCELERATION FROM A STOP IN HOT AMBIENT TEMPERATURES AND/OR STALLING DURING
PARKING LOT MANEUVERS AND/OR STALLING ON COLD START-UP - 2.0L VEHICLES EQUIPPED WITH CD4E TRANSAXLE
BUILT THROUGH 10/1/196
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SURGES-ON ACCELERATION FROM A STOP OR WHILE DRIVING AT LOW SPEEDS
FORD:
1996-97 CONTOUR
LINCOLN-MERCURY:
1996-97 MYSTIQUE
CALIBRATION:
6-04A-R12, 6-04P-R12, 7-04C-R05, 7-04S-R05
WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE
CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.
This TSB article pertains to all calibrations listed as well as past revisions.
ISSUE:
Stall on acceleration from a stop in hot ambient temperatures above 38°C (100°F) and/or stall while turning during parking lot maneuvers and/or stall
after cold start-up in ambient temperatures of 10-27°C (50-80°F) and/or surge on acceleration from a stop or at low speeds may occur on some vehicles.
This may be caused by the Powertrain Control Module (PCM) calibration regarding the fuel control system.
ACTION:
Reprogram the PCM. The new calibration has been revised to reduce the possibility of stalls during the subject conditions. Refer to the following Service
Procedure for details.
SERVICE PROCEDURE
1.
Verify the concern.
2.
Perform normal diagnostics as outlined in the appropriate year Contour/Mystique Service Manual.
3.
Reprogram the PCM using the Service Bay Diagnostic System (SBDS) or New Generation Star (NGS) Tester. Refer to the Application Chart for
correct calibration usage.
NOTE:
REGIONAL APPROVAL MUST BE OBTAINED TO REPLACE THE PCM
