Recall - Fuel/Emission Systems Modification: Overview

90mitsubishi06 SUBJECT:

1986 CALIFORNIA 2.0L CORDIA/TREDIA

EMISSION RECALL
NO. EMR-90-009

DATE May, 1990

MODEL 1986 Cordia/Tredia
PURPOSE

This bulletin provides a detailed procedure for inspection and repair of the emission control system on certain 1986 2.0L California Gasoline Emission Specification Cordia/Tredia models. A letter has been sent to all owners of the affected vehicles telling them to return their vehicles to their Mitsubishi Motors dealer to have the engine serviced. A copy of this lefter is shown on Page 18 of this bulletin.

Please note that the customer is not to be charged for the repairs covered by this bulletin. To achieve the desired results, the procedure MUST be followed EXACTLY as described in this bulletin.


IMPORTANT NOTICE

All dealerships MUST perform all steps as described in this bulletin. Incomplete repairs will lead to emissions-non-compliance and obvious customer dissatisfaction. The California Air Resources Board ("CARB") may survey the results of this campaign several months after starting. If incomplete repairs or non compliance is found, another recall could be ordered or other action undertaken by CARB. Confirm that you are using the proper Technical Service Bulletin repair procedures and service kits for the vehicle model year and engine size that you are working on. Service procedures and kits are different even though some vehicles may look alike.


AFFECTED VEHICLES

This procedure applies to 1986 California 2.0L Gasoline Emission Specification Cordia/Tredia models equipped with automatic or manual transmissions without limitation as to mileage. It does not apply to any other models.




REQUIRED OPERATIONS

On Page 3 of this bulletin is a flow chart which shows the general descriptions of the REQUIRED OPERATIONS.

These "REQUIRED OPERATIONS" are as follows:

1. Replace the spark plugs.

2. Clean the carburetor.

3. Remove the exhaust manifold heat protector. Check the exhaust manifold and heat protector for evidence of exhaust leakage. Replace the exhaust manifold if leakage is evident. Reinstall the exhaust manifold heat protector.

4. Test the Carburetor Feedback System. Replace the Jet Mixture Solenoid Valve as needed.

5. Remove the carburetor and install a choke shim.

6. Remove and clean the Sub-EGR Valve.

7. Remove and clean the EGR Valve.

8. Adjust basic ignition timing.

9. For Automatic Transmission equipped vehicles, adjust the transmission throttle control cable.

10. Install an intermediate wiring harness assembly at the ECU.

11. Complete and affix the "EMISSION RECALL COMPLETED" label.