ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT ENGINE COOLANT

(See page )

2. INSPECT ENGINE OIL

(See page )

3. INSPECT BATTERY

(See page )

4. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

(a) Remove the air cleaner sub-assembly (See page ).

(b) Remove the air cleaner filter element sub-assembly.

(c) Visually check that the air cleaner filter is not excessively damaged or oily. If necessary, replace the air cleaner filter.

(d) Install the air cleaner filter element sub-assembly.

(e) Install the air cleaner sub-assembly (See page ).

5. INSPECT FAN AND GENERATOR V BELT

(See page )

6. INSPECT V-RIBBED BELT TENSIONER ASSEMBLY

(a) Remove the fan and generator V belt (See page ).

(b) Check that nothing is caught in the tensioner by turning it clockwise and counterclockwise. If a malfunction exists, replace the tensioner.

(c) Install the fan and generator V belt (See page ).

7. INSPECT SPARK PLUG

(See page )

8. INSPECT VALVE LASH ADJUSTER NOISE

(a) Rev up the engine several times. Check that the engine does not emit unusual noises.

If unusual noises occur, warm up the engine and idle it for over 30 minutes. Then perform the preceding inspection.

HINT:

If any defects or problems are found during the preceding inspection, perform lash adjuster inspection (See page ).

9. INSPECT IGNITION TIMING

(a) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.

(b) When using the Techstream:

Check the ignition timing.

(1) Connect the Techstream to the DLC3.

(2) Start the engine and run it at idle.

(3) Turn the Techstream main switch on.

(4) Enter the following menus: Powertrain / Engine / Data List / IGN Advance.

Standard ignition timing:

9.5 to 24.5° BTDC at idle

HINT:

Refer to the Techstream operator manual for further details.

(5) Check that the ignition timing advances immediately when the engine speed is increased.

(6) Enter the following menus: Powertrain / Engine / Active Test / Connect the TC and TE1.

(7) Monitor IGN Advance.

(8) Perform the Active Test.

Standard ignition timing:

8 to 12° BTDC at idle

NOTICE:

When checking the ignition timing, the transaxle should be in neutral or park.

HINT:

Refer to the Techstream operator manual for further details.

(c) When not using the Techstream:

(1) Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3. SST: 09843-18040 NOTICE: Confirm the terminal numbers before connecting them. Connecting the wrong terminals can damage the engine. Check the ignition timing with the cooling fans off. Turn off all the electrical systems and the A/C. When checking the ignition timing, the transaxle should be in neutral or park.

(2) Remove the V-bank cover sub-assembly (See page ).

(3) Connect the timing light tester probe to the ignition coil wire for No. 1 cylinder.

NOTICE:

Use a timing light that detects primary signals.

(4) Check the ignition timing at idle.

Standard ignition timing:

8 to 12° BTDC at idle

NOTICE:

When checking the ignition timing, the transaxle should be in the neutral or park.

HINT:

Run the engine at 1000 to 1300 rpm for 5 seconds, and then check that the engine rpm returns to idle speed.

(5) Disconnect terminals 13 (TC) and 4 (CG) of the DLC3.

(6) Check the ignition timing at idle.

Standard ignition timing:

9.5 to 24.5° BTDC at idle

(7) Confirm that the ignition timing advances immediately when the engine rpm is increased.

(8) Remove the timing light from the engine.

(9) Install the V-bank cover sub-assembly (See page ).

10. INSPECT ENGINE IDLE SPEED

(a) Connect the Techstream to the DLC3.

(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.

(c) Turn the Techstream main switch on.

(d) Enter the following menus: Powertrain / Engine / Data List / Engine Speed.

(e) Read the value displayed on the tester.

Standard idle speed:

600 to 700 rpm

HINT:

Refer to the Techstream operator manual for further details.

11. INSPECT COMPRESSION

(a) Warm up the engine until the engine coolant temperature reaches 75°C (167°F) or more.

(b) Stop the engine.

(c) Remove the 6 spark plugs (See page ).

(d) Disconnect the injector connectors.

(e) Check the cylinder compression pressure. (1) Insert a compression gauge into the spark plug hole. (2) While cranking the engine, measure the compression pressure. Standard compression pressure: 1.3 MPa (13 kgf/cm2, 189 psi) Minimum pressure: 0.98 MPa (10 kgf/cm2, 142 psi) Difference between each cylinder: 0.1 MPa (1.0 kgf/cm2, 15 psi) NOTICE: Always use a fully charged battery to obtain an engine speed of 250 rpm or more. Check the compression pressure of the other cylinders in the same way. This measurement must be done as quickly as possible. (3) If the cylinder compression is low, pour a small amount of engine oil into the cylinder through the spark plug hole and inspect again. HINT: If adding oil increases the compression, the piston rings and/or cylinder bore may be worn or damaged. If pressure stays low, a valve may be stuck or seated improperly, or there may be leakage in the gasket.

(f) Connect the injector connectors.

(g) Install the 6 spark plugs (See page ).

12. INSPECT CO/HC

HINT:

This check determines whether or not the idle CO/HC complies with regulations.

(a) Start the engine.

(b) Keep the engine speed at 2500 rpm for approximately 180 seconds.

(c) Insert the CO/HC meter testing probe at least 40 cm (1.31 ft.) into the tailpipe during idle.

(d) Immediately check CO/HC concentration during idle and when running at 2500 rpm.

HINT:

When performing the 2 mode (with the engine idling/running at 2500 rpm) test, follow the measurement order determined by applicable local regulations.

If the CO/HC concentration does not comply with the regulations, perform troubleshooting in the order given below.

(1) Check for DTCs (See page ).

(2) See the table below for possible causes, then inspect and correct the applicable causes if necessary.