Engine

On-vehicle inspection

1. 1
   Inspect engine coolant
2. 2
   Inspect engine oil
3. 3
   Inspect battery
4. 4
   Inspect air cleaner filter element subassembly
5. 5
   Remove the air cleaner cap.
6. 6
   Remove the air filter element.
7. 7
   Visually check that the air filter is not excessively damaged or oily.
8. 8
   Inspect spark plug
9. 9
   Inspect fan and generator v belt

If necessary, replace the air filter. Hint:

You do not need to check the belt deflection because the auto tensioner has been adopted.

7. Inspect ignition timing

Notice:

• Turn all the electrical systems and the a/c off.
• Inspect the ignition timing with the cooling fan off.
• When checking the ignition timing, shift the transmission to the neutral position.

1. 1
   Warm up and stop the engine.
2. 2
   When using intelligent tester:

   

1. 1
   Connect the intelligent tester to the dlc3.
2. 2
   Allow the engine to idle.
3. 3
   Select the following menu items: diagnosis / enhanced obd ii / data list / primary / ign advance.
4. 4
   Read ign advance to check the ignition timing.

Standard ignition timing: 5 to 15° btdc @ idle

1. 1
   check that the ignition timing advances immediately when the engine speed is increased.
2. 2
   Turn the ignition switch off.
3. 3
   Disconnect the intelligent tester from the dlc3.
4. 4
   When not using intelligent tester:
5. 5
   Remove the no. 1 Engine cover (see page em- 22).

   

1. 1
   Open the ignition cover located to the right of the no. 4 Ignition coil.
2. 2
   Pull out the wire harness from the ig cover.
3. 3
   Connect a timing light to the wire harness.

Notice:

Use a timing light that detects the first signal.

5. Using sst, connect terminals 13 (tc) and 4 (cg) of the dlc3.

Sst 09843-18040

6. Allow the engine to idle and check the ignition timing.

Standard ignition timing: 8 to 12° btdc @ idle Hint:

Run the engine at 1,000 to 1,300 rpm for 5 seconds, then check that the engine speed returns to the idling speed.

1. 1
   Remove sst from the dlc3.
2. 2
   Allow the engine to idle and check the ignition timing.

Standard ignition timing: 5 to 15° btdc

1. 1
   Check that the ignition timing advances immediately when the engine speed is increased.
2. 2
   Turn the ignition switch off.
3. 3
   Remove the timing light.
4. 4
   Close the ig cover.
5. 5
   Install the no. 1 Engine cover (see page em- 43).
6. 6
   Inspect engine idle speed

   

1. 1
   When using intelligent tester:
2. 2
   Turn off all the accessories and air conditioning.
3. 3
   Move the shift lever to p or neutral.
4. 4
   Connect the intelligent tester to the dlc3.
5. 5
   Warm up the engine.
6. 6
   Select the tester menus: diagnosis / enhanced obd ii / data list / primary / engine spd.
7. 7
   Read engine speed to check the idle speed while the radiator-cooling fan is not rotating.

Standard idle speed: 600 to 700 rpm

1. 1
   Turn the ignition switch off.
2. 2
   Disconnect the tester from the dlc3.
3. 3
   When not using intelligent tester:
4. 4
   Turn off all the accessories and air conditioning.
5. 5
   Move the shift lever to p or neutral.
6. 6
   Connect sst to 9 (tac) of the dlc3 terminal, and then connect a tachometer to sst.

Sst 09843-18030

1. 1
   Warm up the engine.
2. 2
   Check the idle speed while the radiator-cooling fan is not rotating.

Standard idle speed: 600 to 700 rpm

1. 1
   Turn the ignition switch off.
2. 2
   Remove the tachometer and disconnect sst from the dlc3.

   

1. 1
   Inspect compression
2. 2
   Warm up and stop the engine.
3. 3
   Remove the no. 1 Engine under cover.
4. 4
   Remove the 4 ignition coils (see page ig-9).
5. 5
   Remove the 4 spark plugs.
6. 6
   Disconnect the 4 fuel injector connectors.
7. 7
   Set sst and a compression gauge. Sst 09992-00500
8. 8
   Insert the compression gauge into the spark plug hole.
9. 9
   While cranking the engine, measure the compression pressure.

Standard compression pressure: 1,300 kpa (13.8 Kgf/cm2, 196 psi) Minimum pressure: 1,000 kpa (10 kgf/cm2, 142 psi) Standard difference between each cylinder: 100 kpa (1.0 Kgf/cm2, 14 psi)

Notice:

• Always use a fully charged battery to obtain an engine speed of 250 rpm or more.
• Check the other cylinders' compression pressures in the same way.
• This measurement must be done as quickly as possible.

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.

1. 1
   Connect the 4 fuel injector connectors.
2. 2
   Install the 4 spark plugs.

Torque: 25 n*m (255 kgf*cm, 18 ft.*Lbf)

Install the 4 ignition coils (see page ig-9).

Install the no. 1 Engine under cover.

10. Inspect co/hc

Hint:

The ecm properly controls the co/hc concentration in the emission gas.

1. 1
   Start and warm up the engine.
2. 2
   Start and warm up the engine.
3. 3
   Insert the co/hc meter testing probe at least 40 cm (1.3 Ft.) Into the tailpipe while idling.
4. 4
   Inspect the co/hc concentration while idling and/or at 2,500 rpm.

If the co/hc concentration is not as specified, perform troubleshooting.

Hint:

See the table below for possible causes, and then inspect and repair the applicable causes if necessary.