PCM - MIL ON/ DTC's Set/Spark Knock
Article No.99-1-5
01/25/99
^ MALFUNCTION INDICATOR LAMP (MIL) - MIL
ILLUMINATED - DIAGNOSTIC TROUBLE CODE
(DTC) P0300 (MISFIRE DTC) STORED IN
CONTINUOUS MEMORY BUT NO MISFIRE
OBSERVED - VEHICLES WITH 3.0L 2-VALVE
ENGINE
^ MALFUNCTION INDICATOR LAMP (MIL) - MIL
ILLUMINATED - DIAGNOSTIC TROUBLE CODES
(DTCS) P0135, P0141, P0155, AND P0161 STORED
IN CONTINUOUS MEMORY - VEHICLES WITH 3.0L
2-VALVE ENGINE
^ SPARK KNOCK - DURING ACCELERATION -
VEHICLES WITH 3.0L 2-VALVE ENGINE
FORD:
1996-97 TAURUS
LINCOLN-MERCURY:
1996-97 SABLE
CALIBRATION
7-10A-R10-R12, 7-10B-R10-R12, 7-10R-R10-R11, 6-10A-R12, 6-10B-R12, 6-10S-R12, 6-10T-R12
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
Some vehicles may have the following concerns:
^ Spark knock on acceleration
^ Check engine light on with Heated Exhaust Gas Oxygen (H EGO) heater Diagnostic Trouble Codes (DTCs) PO135, PO141, P0155, and P0161
^ Check engine light on with misfire DTC P0300 only with no misfire felt.
This may be due to the calibration strategy in the Powertrain Control Module (PCM).
ACTION
Reprogram the PCM. Refer to the following Service Procedure and the Tear Tag Chart.
SERVICE PROCEDURE
1. Perform normal diagnostics as outlined in the 1998 Powertrain Control/Emissions Diagnosis (PC/ED) On-Board Diagnostics II (OBD-II) Service Manual and service as required.
2. If the concern is still present, reprogram the PCM using the 12/1998 or later CD-ROM, Service Bay Diagnostic System (SBDS), or New Generation Star (NGS) Tester.
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 Modifications 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.
OTHER APPLICABLE ARTICLES: 98-13-7
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
990105A Reprogram Powertrain 0.6 Hr.
Control Module (PCM)
DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 42
OASIS CODES: 608400, 615000, 615500, 615600, 698298