ДВИГАТЕЛЬ ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ

PROCEDURE

CHECK V-RIBBED BELT
1. Visually check the belt for excessive wear, frayed cords, etc.
  
  If any defect has been found, replace the belt.
  
  Tech Tips
  
  Cracks on the rib side of a belt are considered acceptable. If the belt has chunks missing from the ribs, it should be replaced.
2. *1 CORRECT
  
  *2 INCORRECT
  
  Check by hand that the belt fits properly in the ribbed grooves and has not slipped out of the grooves on the bottom of the crank pulley.
INSPECT V-RIBBED BELT TENSIONER ASSEMBLY
1. Check that nothing gets caught in the tensioner by turning it clockwise and counterclockwise.
  
  If a malfunction exists, replace the tensioner.
INSPECT VALVE LASH ADJUSTER NOISE
1. 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 inspection above again.
  
  If any defects or problems are found during the inspection above, perform a lash adjuster inspection Click here.
INSPECT IGNITION TIMING
1. Warm up and stop the engine.
  
  Tech Tips
  
  A warmed up engine should have an engine coolant temperature of over 80°C (176°F) and an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.
2. When using the intelligent tester:
  1. Connect the intelligent tester to the DLC3.
  2. Start the engine and idle it.
  3. Push the intelligent tester main switch on.
  4. Enter the following items: Powertrain / Engine and ECT / Data List / Primary / IGN Advance /
    
    Standard ignition timing
    
    8 to 18° BTDC @ idle
    
    Tech Tips
    
    Refer to the intelligent tester operator's manual for further details.
3. When not using the intelligent tester:
  1. Remove the V-bank cover.
  2. Remove the 5 clips and air cleaner inlet cover.
  3. Remove the 5 clips and engine room side cover LH.
  4. Remove the 2 bolts and No. 1 air cleaner inlet.
  5. Disconnect the air cleaner cap LH.
  6. Remove the 2 nuts and air cleaner case LH.
  7. Connect the tester probe of a timing light to the wire of the ignition connector for No. 1 cylinder.
    
    Note
    
    Use a timing light that detects primary signals.
  8. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
    
    SST
    
    09843-18040
    
    Note
    
    Confirm the terminal numbers before connecting them. Connecting the wrong terminals can damage the engine.
    
    When checking the ignition timing, the transmission should be in neutral.
  9. Using a timing light, check the ignition timing.
    
    Standard ignition timing
    
    8 to 12° BTDC @ idle
  10. Remove SST from the DLC3.
  11. Check the ignition timing.
    
    Standard ignition timing
    
    8 to 18° BTDC @ idle
  12. Check that the ignition timing advances immediately when the engine speed is increased.
  13. Disconnect the timing light from the engine.
  14. Install the air cleaner case LH with the 2 nuts.
    
    Torque:
    
    5.0 N*m { 51 kgf*cm, 44 in.*lbf }
  15. Connect the air cleaner cap LH.
  16. Install the No. 1 air cleaner inlet with the 2 bolts.
    
    Torque:
    
    5.0 N*m { 51 kgf*cm, 44 in.*lbf }
  17. Install the engine room side cover LH with the 5 clips.
  18. Install the air cleaner inlet cover with the 5 clips.
  19. Install the V-bank cover.
INSPECT ENGINE IDLE SPEED
1. Warm up and stop the engine.
  
  Tech Tips
  
  A warmed up engine should have an engine coolant temperature of over 80°C (176°F) and an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.
2. When using the intelligent tester:
  1. Connect the intelligent tester to the DLC3.
    
    Note
    
    Switch off all accessories and the A/C before connecting the intelligent tester.
  2. Race the engine speed at 2500 rpm for approximately 90 seconds.
  3. Push the intelligent tester main switch on.
  4. Enter the following items: Powertrain / Engine and ECT / Data List / Primary / Engine Speed /
    
    Standard idle speed
    
    700 to 800 rpm
    
    Note
    
    When checking the idle speed, the transmission should be in neutral.
    
    Tech Tips
    
    Refer to the intelligent tester operator's manual for further details.
    
    If the idle speed is not as specified, check the air intake system.
  5. Disconnect the intelligent tester from the DLC3.
3. When not using the intelligent tester:
  1. Using SST, connect a tachometer probe to terminal 9 (TAC) of the DLC3.
    
    SST
    
    09843-18030
    
    Note
    
    Confirm the terminal numbers before connecting them. Connecting the wrong terminals can damage the engine.
  2. Race the engine speed at 2500 rpm for approximately 90 seconds.
  3. Check the idle speed.
    
    Idle speed (Transmission neutral position)
    
    700 to 800 rpm
    
    If the speed is not as specified, check the air intake system.
  4. Disconnect the tachometer from the DLC3.
INSPECT COMPRESSION

Note

After turning the engine switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work Click here.
1. Warm up and stop the engine.
  
  Tech Tips
  
  A warmed up engine should have an engine coolant temperature of over 80°C (176°F) and an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.
2. Remove the V-bank cover.
3. Remove the 5 clips and air cleaner inlet cover.
4. Remove the 5 clips and engine room side cover LH.
5. Remove the 5 clips and engine room side cover RH.
6. Remove the 2 bolts and No. 1 air cleaner inlet.
7. Remove the 4 nuts and 2 air cleaner assemblies.
8. Disconnect the cable from the negative battery terminal.
  
  Note
  
  When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
9. Remove the battery and tray.
10. *1 Front
  
  Remove the 3 bolts and skid control ECU.
11. Remove the bolt, 2 nuts and skid control ECU bracket.
12. *1 for Bank 1:
  
  *2 for Bank 2:
  
  Disconnect the 8 ignition coil connectors.
13. *1 for Bank 1:
  
  *2 for Bank 2:
  
  Disconnect the 2 injector connectors as shown in the illustration.
14. Remove the 8 bolts and 8 ignition coils.
15. Remove the 8 spark plugs.
16. Cylinder under the battery installation position:
  
  Inspect the compression pressure.
  1. Insert a compression gauge into the spark plug hole.
  2. Install the battery and tray.
  3. Connect the cable to the negative battery terminal.
  4. Depress and hold the brake pedal, and turn the engine switch on (IG). Then check the compression pressure.
    
    Tech Tips
    
    Always use a fully charged battery to obtain engine speed of 200 rpm or more.
    
    Note
    
    The measurement must be done as quickly as possible.
    
    Standard compression pressure
    
    1300 kPa (13.3 kgf/cm², 189 psi) or more
    
    Minimum pressure
    
    900 kPa (9.2 kgf/cm², 131 psi)
  5. Turn the engine switch off.
  6. Disconnect the cable from the negative battery terminal.
    
    Note
    
    When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
  7. Remove the battery and tray.
  8. Remove the compression gauge.
17. Cylinder other than cylinder under the battery installation position:
  
  Inspect the compression pressure.
  1. Insert a compression gauge into the spark plug hole.
  2. Install the battery and tray.
  3. Connect the cable to the negative battery terminal.
    
    Note
    
    When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
  4. Depress and hold the brake pedal, and turn the engine switch on (IG). Then check the compression pressure.
    
    Tech Tips
    
    Always use a fully charged battery to obtain engine speed of 200 rpm or more.
    
    Note
    
    The measurement must be done as quickly as possible.
    
    Standard compression pressure
    
    1300 kPa (13.3 kgf/cm², 189 psi) or more
    
    Minimum pressure
    
    900 kPa (9.2 kgf/cm², 131 psi)
  5. Remove the compression gauge.
  6. Perform the inspection above for each cylinder.
  7. Check the pressure difference between each compression pressure.
    
    Pressure difference
    
    100 kPa (1.0 kgf/cm², 14.5 psi) or less
  8. If the cylinder compression is low in one or more cylinders, pour a small amount of engine oil into the cylinder with low compression through its spark plug hole. Then inspect the cylinder compression pressure again.
    Tech Tips
    - If adding oil helps boost the compression, it is likely that the piston rings and/or cylinder bore are worn or damaged.
    - If pressure stays low, a valve may be stuck or seated improperly, or there may be leakage in the gasket.
  9. Disconnect the cable from the negative battery terminal.
    
    Note
    
    When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
  10. Remove the battery and tray.
18. Install the 8 spark plugs.
19. Install the 8 ignition coils with the 8 bolts.
20. Connect the 8 ignition coil connectors.
21. Connect the 2 injector connectors.
22. Install the skid control ECU bracket with the bolt and 2 nuts.
  
  Torque:
  
  8.5 N*m { 87 kgf*cm, 75 in.*lbf }
23. Install the skid control ECU with the 3 bolts.
  
  Torque:
  
  8.5 N*m { 87 kgf*cm, 75 in.*lbf }
24. Install the battery and tray.
25. Connect the cable to the negative battery terminal.
  
  Note
  
  When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
26. Install the 2 air cleaner assemblies with the 4 nuts.
27. Install the No. 1 air cleaner inlet with the 2 bolts.
28. Install the engine room side cover RH with the 5 clips.
29. Install the engine room side cover LH with the 5 clips.
30. Install the air cleaner inlet cover with the 5 clips.
31. Install the V-bank cover.
32. Clear the DTCs Click here.

*1	CORRECT
*2	INCORRECT

Standard ignition timing
8 to 18° BTDC @ idle

Standard ignition timing
8 to 12° BTDC @ idle

Standard ignition timing
8 to 18° BTDC @ idle

Standard idle speed
700 to 800 rpm

Idle speed (Transmission neutral position)
700 to 800 rpm

*1	Front

*1	for Bank 1:
*2	for Bank 2:

*1	for Bank 1:
*2	for Bank 2:

Standard compression pressure
1300 kPa (13.3 kgf/cm², 189 psi) or more

Minimum pressure
900 kPa (9.2 kgf/cm², 131 psi)

Standard compression pressure
1300 kPa (13.3 kgf/cm², 189 psi) or more

Minimum pressure
900 kPa (9.2 kgf/cm², 131 psi)

Pressure difference
100 kPa (1.0 kgf/cm², 14.5 psi) or less

INSPECT CO/HC

Tech Tips

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

Start the engine.
Keep the engine speed at 2500 rpm for approximately 180 seconds.
Insert the CO/HC meter testing probe at least 40 cm (1.31 ft) into the tailpipe during idling.

Immediately check CO/HC concentration at idle and 2500 rpm.

Tech Tips

When performing the 2 mode (2500 rpm and idle) test, follow the measurement order prescribed by the applicable local regulations.
If the CO/HC concentration does not comply with regulations, troubleshoot in the order given below.

Check the heated oxygen sensor (for Sensor 1) (See page ) and heated oxygen sensor (for Sensor 2) Click here operation.

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

CO	HC	Symptom	Causes
Normal	High	Rough idle	1. Faulty ignitions Incorrect timing Plugs are contaminated, shorted, or gaps are defective. 2. Leaky intake and exhaust valves 3. Leaky cylinder
Low	High	Rough idle (Fluctuating HC reading)	1. Vacuum leaks PCV hose Intake manifold Throttle body 2. Lean mixture causing misfire
High	High	Rough idle (Black smoke from exhaust)	1. Restricted air filter 2. Faulty SFI system Faulty pressure Defective engine coolant temperature sensor Faulty ECM Faulty injector Faulty throttle position sensor Faulty mass air flow meter

Symptom

Causes

Normal

High

Rough idle

1. Faulty ignitions

Incorrect timing
Plugs are contaminated, shorted, or gaps are defective.

2. Leaky intake and exhaust valves
3. Leaky cylinder

Low

High

Rough idle

(Fluctuating HC reading)

1. Vacuum leaks

PCV hose
Intake manifold
Throttle body

2. Lean mixture causing misfire

High

Rough idle

(Black smoke from exhaust)

1. Restricted air filter
2. Faulty SFI system

Faulty pressure
Defective engine coolant temperature sensor
Faulty ECM
Faulty injector
Faulty throttle position sensor
Faulty mass air flow meter