Sable V6-183 3.0L DOHC VIN S MFI (1997)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
PCM - MIL ON/Misfires
Article No.
98-8-4
04/27/98
MALFUNCTION INDICATOR LAMP (MIL) - MIL
ILLUMINATED - MISFIRES AT HIGH ENGINE RPMS
DURING ENGINE WARM UP - VEHICLES EQUIPPED
WITH 3.0L 4-VALVE ENGINE AND AX4N TRANSAXLE
FORD:
1997 TAURUS
LINCOLN-MERCURY:
1997 SABLE
CALIBRATION
7-14A-R06, 7-14A-R10, 7-14S-R06, 7-14S-R10
WARNING
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE(S). PERFORMING THIS MODIFICATION ON OTHER
ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.
ISSUE
The Malfunction Indicator Lamp (MIL) may illuminate for misfires at high engine rpms during engine warm up. The vehicle may also exhibit brief
engine miss and/or roughness. These conditions usually occur at highway speeds after a 4-2 downshift and acceleration to 6000 rpms.
ACTION
Perform normal diagnostics and reprogram the Powertrain Control Module (PCM). The revised calibration should reduce the possibility of these
concerns. Refer to the PCM Cross Reference Chart for correct PCM usage.
NOTE
PCM REPLACEMENT IS NOT AUTHORIZED BY THIS TSB. REFER TO THE POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS
(PC/ED) SERVICE MANUAL FOR APPROPRIATE DIAGNOSTIC PROCEDURES IF PCM HARDWARE CONCERNS EXIST.
Obtain an Authorized Modification Decal (FPS 8262 - obtainable through DOES II, 25/pkg) and list the date, dealer number, and summary of
modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized
Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.