Canada - Exhaust System - Excessive Sulfur Odors
Bulletin
2020
Issue Date
June 17, 2004
Market
Canada
Title:
EXCESSIVE SULPHUR DIOXIDE ODOUR
Model
'03 - "04 Matrix (1ZZ-FE)
Some customers may complain of excessive sulphur dioxide odour on 2003-2004 model year Matrix vehicles under the following conditions:
- Stop and go driving
- Heavy acceleration
In order to reduce the sulphur dioxide odour, the Electronic Control Module (ECM) (SAE term: Powertrain Control Module/PCM) fuel cut control logic has been modified and a new catalyst is provided. Follow the repair procedure to reflash the ECM and replace the catalytic converter assembly.
Note:
For more complete understanding of the root cause, refer to TSB 1212 "Sulphur Odour from Exhaust" dated March 4, 2003
APPLICABLE VEHICLES:
- 2003 - 2004 model year Matrix vehicles equipped with the 1ZZ-FE engine produced BEFORE the Production Change Effective VINs shown.
PRODUCTION CHANGE INFORMATION :
PARTS INFORMATION:
REQUIRED SSTS:
WARRANTY INFORMATION:
ECM (PCM) IDENTIFICATION CHART:
Note:
Some 2003 model year Matrix ATM vehicles with Delco ECM (P/N 8966 - 02164) are not reprogrammable. If the Diagnostic Tester displays an error message, confirm part number and then refer to ECM/PCM replacement procedure of this TSB.
ECM REPROGRAM PROCEDURE:
1. Check for the Authorized Modification Label affixed to the vehicle in the location shown in Figure 2. If there is no label present, proceed to step 2.
2. Connect the Diagnostic Tester to the vehicle and select "CURRENT ECU CAL" from the "ECU REPROGRAM MAIN MENU." To determine the vehicle's current ECM calibration, Figure 1 shown above.
3. Proceed to Flash Reprogram the ECM (PCM) by following the procedures in TSB #941 titled "ECU Flash Reprogramming Process", for 2001 and late applicable models
Note:
Errors during the flash reprogramming process can PERMANENTLY DAMAGE the vehicles ECM (PCM). In order to minimize this risk follow the steps below:
- Make sure that the battery voltage is no less than 11.4 volts.
- Install a battery charger and set on a low setting to assure that the battery voltage DOES NOT FALL BELOW 11.4 VOLTS during the reprogramming.
- If battery's state of charge is in question, test with SST No. J-44350 "Midtronics Battery Tester."
- Confirm that the engine hood is up, parking brake is set and all accessories are OFF (i.e., audio system, A/C, interior lights, headlights, ect.)
- DO NOT perform the reprogramming process until the engine room temperature is 70�C or less.
- Confirm cable connections between the vehicle and Diagnostic Tester are secured.
- In case of Error Message "Cannot go to Reprogram Mode," refer to TSB #0959 "ECU Flash Reprogramming Error Message."
- Do not interrupt the vehicle during the reprogramming process, keep all doors closed.
4. Select the proper ECM (PCM) calibration file for the model year vehicle and reprogram the ECM (PCM).
5. Start the engine and warm up the vehicle to normal operating temperatures before test-driving.
6. Test drive vehicle to confirm proper operation and to readjust the ECM (PCM) "Learned Values." Drive the vehicle using light to moderate acceleration in mostly stop and go type driving. Allow the vehicle to shift fully through all gears and at various shifter positions.
7. Enter the following information on the Authorized Modification Label shown below in Figure 2 using a permanent maker.
- ECM (PCM) part number
- New ECM (PCM) calibration number
- Your Dealer code
- Reprogramming date
ECM (PCM) REPLACEMENT PROCEDURE:
2003 model year Matrix 2WD ATM vehicles equipped with Delco ECM (PCM) P/N 89666 - 02160 are not reprogrammable.
1. For the location of the ECM (PCM) refer to E-TAS 2003 or 2004 model year Matrix Repair Manual Section: Diagnostics
Sub Section: SFI
CATALYTIC CONVERTER REPLACEMENT PROCEDURE:
Refer to E-TAS 2003 or 2004 model year Matrix Repair Manual Section: Exhaust.
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.