ENGINE TUNE-UP [WL-C, WE-C]

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Engine Tune-up Preparation

1.  Start the engine and warm up completely.

2.  Verify the following:

•  MT: Shift lever is in neutral position

•  AT: Selector lever is in P position

3.  Verify that the accelerator pedal is released.

4.  Turn off the A/C switch. (if equipped)

5.  Turn off all electrical loads.

6.  Verify that no DTC is present.

7.  Connect the M-MDS to the DLC-2.

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Idle Speed Inspection

1.  Perform “Engine Tune-up Preparation”. (See Engine Tune-up Preparation.)

Note

•  Idle speed is not adjustable.

•  Idle speed verification requires M-MDS.

2.  Verify that the idling speed (M-MDS: RPM PID) is within the specification using the M-MDS function.

•  If not as specified, inspect the following parts.

―  APP sensor

―  ECT sensor

―  CMP sensor

―  CKP sensor

―  Fuel pressure sensor

―  Fuel injector

―  Supply pump

•  If the parts are normal, replace the PCM.

Correction Procedure

MAF correction

Note

•  Perform this procedure after replacing the MAF sensor/IAT sensor No.2 or at the recommended interval as described under “E.G.R. system” in “SCHEDULED MAINTENANCE.”

1.  Perform “Engine Tune-up Preparation”. (See Engine Tune-up Preparation.)

2.  After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

•  When using the IDS (notebook PC)

1.  Select the “Powertrain”.

2.  Select the “Engine Checks”.

•  When using the PDS (pocket PC)

1.  Select “All Tests and Calibrations”.

3.  Then, select the “Learning”, “MAF Correction” from the screen menu.

4.  Perform the MAF correction to the directions on the screen.

Without Using the M-MDS

Note

•  The glow indicator light illuminates while MAF learning is performed, and flashes five times after it is completed.

1.  Short the DLC terminal TEN to body ground using a jumper wire.

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2.  Short circuit the DLC terminal TEN five times within 5 s.