Engine

2GR-FE ENGINE MECHANICAL: ENGINE: ON-VEHICLE INSPECTION

ON-VEHICLE INSPECTION

1. INSPECT ENGINE COOLANT
(a) Inspect the engine coolant Testing and Inspection.
2. INSPECT ENGINE OIL
(a) Inspect the engine oil Testing and Inspection.
3. INSPECT BATTERY
(a) Inspect the battery Component Tests and General Diagnostics.
4. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY
(a) Remove the air cleaner filter element sub-assembly.
(b) Visually check that there is no dirt, blockage, and/or damage to the air cleaner filter element sub-assembly.
HINT:
- If there is any dirt or a blockage in the air cleaner filter element sub-assembly, clean it with compressed air.
- If any dirt or a blockage remains even after cleaning the air cleaner filter element sub-assembly with compressed air, replace it.

5. INSPECT SPARK PLUG
(a) Inspect the spark plugs Testing and Inspection.
6. 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 valve lash adjuster inspection Engine Unit.

7. INSPECT IGNITION TIMING
(a) When using Techstream:
Check the ignition timing.
(1) Connect Techstream to the DLC3.
(2) Warm up the engine.
(3) Turn the tester on.
(4) Enter the following menu items: Powertrain / Engine and ECT / Data List / IGN Advance.
(5) Read the value displayed on the tester.
Ignition timing:
8 to 12° BTDC at idle
HINT: Refer to Techstream operator's manual for help when selecting the DATA LIST.

(b) When not using Techstream:




Check the ignition timing.
(1) Warm up the engine.
(2) 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.
- Turn off all electrical systems before connecting the terminals.
- Perform this inspection after the cooling fan motor is turned off.
(3) Remove the V-bank cover sub-assembly.




(4) Pull out the red lead wire harness.
(5) Connect the tester terminal of the timing light to the red lead wire as shown in the illustration.
NOTE: Use a timing light which detects the No. 1 cylinder ignition signal.
(6) Check the ignition timing at idle.
Standard ignition timing:
8 to 12° BTDC at idle
NOTE: When checking the ignition timing, the transmission should be in the neutral position.
HINT: Run the engine at 1000 to 1300 rpm for 5 seconds, and then check that the engine rpm returns to idle speed.
(7) Disconnect terminals 13 (TC) and 4 (CG) of the DLC3.
(8) Check the ignition timing at idle.
Standard ignition timing:
7 to 24° BTDC at idle
(9) Confirm that the ignition timing advances immediately when the engine rpm is increased.
(10) Remove the timing light from the engine.
8. INSPECT ENGINE IDLE SPEED
(a) When using Techstream:
Check the idle speed.
(1) Connect Techstream to the DLC3.
(2) Warm up the engine.
(3) Turn the tester on.
(4) Enter the following menu items: Powertrain / Engine and ECT / Data List / Engine Speed.
(5) Read the value displayed on the tester.
Idle speed:
600 to 700 rpm
NOTICE:
- When checking the idle speed, the transmission should be the in neutral position.
- Check the idle speed with the cooling fan off.
- Switch off all accessories and air conditioning before connecting Techstream.
HINT: Refer to Techstream operator's manual for further details.





(b) When not using Techstream:
Check the idle speed.
(1) Warm up the engine.
(2) Using SST, connect the tachometer test probe to terminal 9 (TAC) of the DLC3.
SST: 09843-18030
(3) Check the idle speed.
Standard idle speed:
600 to 700 rpm
9. INSPECT COMPRESSION
(a) Warm up and stop the engine.
(b) Disconnect the injector assembly connectors.
(c) Remove the intake air surge tank assembly Removal.
(d) Remove the 6 ignition coils.
(e) Remove the 6 spark plugs.





(f) 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 other cylinders' compression pressure 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.

(g) Install the 6 spark plugs.
Torque: 18 Nm (184 kgf-cm, 13 ft-lbf)
(h) Install the 6 ignition coils.
Torque: 10 Nm (102 kgf-cm, 7 ft-lbf)
(i) Install the intake air surge tank assembly Installation.
10. INSPECT CO/HC
(a) Start the engine.
(b) Run the engine at 2500 rpm for approximately 180 seconds.
(c) Insert the CO/HC meter testing probe at least 40 cm (1.3 ft.) into the tailpipe during idling.
(d) Check CO/HC concentration at idle and/or 2500 rpm.
HINT: Check regulations and restrictions in your area when performing 2 mode CO/HC concentration testing (engine check at both idle speed and at 2500 rpm).
If the CO/HC concentration does not comply with regulations, perform troubleshooting in the following order.
(1) Check the air fuel ratio sensor and heated oxygen sensor operation.
(2) See the following table for possible causes, and then inspect and repair if necessary.