Engine Controls - Deceleration Hesitation/Shock
No: TSB-10-13-003DATE: March, 2010
MODEL: 2008 Lancer Evolution
SUBJECT:
ECM REPROGRAMMING FOR HESITATION OR SHOCK DURING DECELERATION
PURPOSE
Incorrect parameters in the ECM may allow an incorrect air fuel ratio under certain driving conditions. When first releasing the accelerator pedal, customers may report a hesitation or shock during moderate deceleration between 2,000 and 3,000 rpm.
This TSB provides instructions to reprogram the ECM with new parameters to correct the condition.
AFFECTED VEHICLES
2008 Lancer Evolution with 5 speed manual transmission
REQUIRED OPERATIONS
The following equipment is needed to reprogram the ECM.
^ VCI (Vehicle Communication Interface) - MB991824.
^ Laptop computer with A/C power adaptor - 520924, or 547708.
^ MUT-III main harness 'A' (blue connector at the DLC end) - MB991910.
^ USB 2.0 cable - MB991827.
^ "Engine Compartment/Control Module" labels - p/n MSSF024G00.
^ MEDIC-II Download at M349 or higher.
If an affected vehicle has a Malfunction Indicator Lamp (MIL) illuminated and DTCs are listed in the ECM memory (before reprogramming), follow diagnostic instructions for the applicable DTCs per the service manual information. Do not reprogram the ECM until the reason for DTCs being set is corrected.
ECM REPROGRAMMING CHART
REPAIR PROCEDURE
1. Check the underside of the hood to verify that there is no Authorized Modification label previously installed to indicate that this reprogramming has already been done. If a label is present and the "ROM ID #" on the label matches the "New 51W Part No." in the table in this bulletin, the ECM is to the latest level and reprogramming is not necessary.
For MEDIC II users only: (MUT-III users go to step 5)
2. Verify that the MEDIC-II is at version 5.6 and at download M349 or higher.
If your MEDIC-II Download is below M349, update your MEDIC-II as follows.
3. On the MEDIC-II main screen, click on "Maintenance".
4. Click on "Download". After the download completes, click on "Cancel" to exit the "Maintenance" window. GO TO THE REPROGRAMMING PROCEDURE.
5. Scan Tool Viewer (STV) ONLY (MEDIC-II USERS go to the Programming Procedure).
Verify that your MUT-III has the most current version of the reprogramming database:
a. From the MUT-III Main Page, select "Special Function", then select "ECU Reprogramming."
b. Select "Database File Display (CAN)."
c. The database version is displayed in the top right corner of the screen. Make sure the database version is N10031 or greater.
1. If the database version is N10031 or greater, reprogram the ECM as described in the Programming Procedure.
2. If the database version is less than N10031, you must transfer the new reprogramming data from the "Reflash Update CD 03/10 to the MUT-III hard drive as follows:
1. Install Reflash Update CD 03110 into the PC's DVD-ROM drive.
2. Follow the instructions on the screen. The system will automatically transfer the reprogramming data onto the PC's hard drive.
3. Continue to the Reprogramming Procedure.
REPROGRAMMING PROCEDURE
BATTERY VOLTAGE (AS MEASURED AT THE BATTERY POSTS WITHOUT ELECTRICAL LOAD) MUST BE KEPT AT 12.4V OR HIGHER IN ORDER TO REPROGRAM THE ECM. MEASURE THE BATTERY VOLTAGE AND CHARGE AS NECESSARY. A BATTERY CHARGER SHOULD BE CONNECTED TO THE VEHICLE'S BATTERY DURING THE REPROGRAMMING PROCEDURE. DO NOT ALLOW THE BATTERY CHARGER TO TIME OUT
NOTE:
VCI Stand-alone reprogramming is not available for this procedure. The laptop and the VCI must remain connected for the entire procedure.
Connect the equipment as follows:
^ Turn the laptop computer on. If you're running on battery power and the charge indicator in the lower right hand corner of the screen does not show a full charge it is recommended that either the laptop battery be charged prior to beginning or that reprogramming be completed with the A/C power adaptor connected to the laptop.
^ Connect the USB cable to the VCI.
^ When the laptop displays the MUT-III main screen connect the USB cable to the laptop.
^ Connect the MUT-III main harness with the blue DLC connection to the VCI.
^ Connect the blue connector of the MUT-III main harness to the vehicle's data link connector.
^ Turn the VCI power switch ON. Verify that the indicator lamp in the upper right corner of the screen is green.
ECM Reprogramming
1. Conduct the following steps to reprogram the ECM.
a. Turn the ignition key or knob (F.A.S.T. equipped) to the ON position. If the vehicle is equipped with the F.A.S.T. System, the fob must remain in the vehicle for the entire procedure.
b. If using MEDIC-II, from the main page, click the MUT-III STV icon at the top center of the screen.
c. Select "Special Function."
d. Select "ECU reprogramming."
e. Click on the car icon at the bottom of the page.
f. Select "Automatic Reprogramming (CAN)."
g. If the VIN or vehicle description displayed does not match the vehicle you are working on, click on the eraser icon at the bottom of the page.
Select VIN by clicking on the button.
h. Click on the icon in the lower RH corner of the screen to have the MUT-III automatically read the VIN. If a message appears saying that the VIN cannot be input automatically, manually type the 17 digit VIN into the VIN field.
Make sure the VIN is correct and click on the check mark.
i. A window may pop up asking you to select either the transmission type or vehicle class. Click on the TRANSMISSION button.
j. Select W5M6A (5MT-4WD) from the menu, then click the check mark at the bottom .
k. Confirm that all of the data is correctly entered and click the check mark at the bottom.
l. MFI should already be highlighted. If not, click on it to highlight it.
Click on the check mark at the bottom of the page.
m. A message will advise you that the system will "Automatic search the data."
Click on the check mark to continue.
NOTE:
ECM TO LATEST VERSION
If this message does not appear, continue with step n.
If a "Complete Reprogramming" message is displayed, the ECM software is already at the most current level. Do not continue with this reprogramming procedure.
Click the check mark to clear the window, then click on the Home icon at the lower left corner of the screen to return to the System Select main page.
n. The CAN database screen will display.
Confirm the database number at the top right of the table is N10031 or higher.
If more than one row is displayed in the table, refer to the ECM Reprogramming Chart on page 1 to select the proper Data No. for this procedure and select the appropriate row.
Click on the correct row to highlight it. Click on the check mark to continue.
0. A window will pop up asking you to "Check reprogramming data."
p. Click on the check mark to begin reprogramming.
It will take up to 5 minutes for reprogramming to complete.
[Caution!] The Daytime Running Lights and both the engine and condenser fans will automatically be turned on during reprogramming. Care should be taken to insure nothing gets caught in the moving blades. The radio will be turned off, instrument warning lights will illuminate and you will hear a chime in the interior for a short period of time. These are normal conditions.
q. This message will display when ECM reprogramming is successfully completed. Confirm the "New S/W P/N" displayed matches the table in this TSB.
r. Turn the ignition switch to the OFF position, wait approximately 10 seconds, then turn it back on.
s. Click the check mark and you will be returned to the "ECU Reprogramming".
2. Click the "Home" icon at the bottom left side of the screen.
3. Using the MUT-III, check and erase ALL DTCs from all systems as follows.
a. Select "Special Function."
b. Select "All DTCS," then select ERASE AND READ ALL DTCS.
This step erases DTCs in all ECMs and then rechecks to confirm that they do not return.
c. Inspect the list on the left side of the screen and ensure that the checked selections match the options on the vehicle. DTCs may be set if the the options are incorrectly entered.
NOTE:
At this time, the check mark at the bottom of the page is not highlighted (active).
d. In the left column, scroll to and click FAST/IMMOBI/KEYLESS. In the right column, check the correct option code (VF #) from the Loading Options Setup list. If the vehicle is equipped with regular keyless entry, select VF2. If the vehicle is equipped with F.A.S.T. key, select VF3. This will activate the check mark at the bottom of the page.
Click the check mark to continue.
4. A window will pop up asking you to confirm DTC erasing. Click the check mark for DTC erasing and reading to begin.
5. When DTC erasing is completed a window will pop up. Click the check mark to clear the window. If DTCs remain diagnose and repair the condition as per the Service Manual. If no additional DTCs are listed click the check mark to clear the window and then click the Home icon in the lower left of the screen to return to the main menu.
6. Turn off the ignition switch and disconnect the MUT-III. Turn off and disconnect the battery charger.
7. Using a ball-point pen enter the appropriate Engine Control Module (ECM) part number Software Part Number (ROM ID #) this Technical Service Bulletin number (TSB-1O-13-003), your dealer code and the current date on the Engine Compartment / Control Module Label (p/n MSSFO24GOO). The Vendor Code is not applicable. The label is available from your facing PDC.
8. Carefully remove all dirt and oil from a vacant area near the VECI label on the underside of the hood and affix the Engine Compartment Label (LH side above) to that area.
PARTS INFORMATION
Use only the Genuine Mitsubishi Parts listed below.
WARRANTY INFORMATION