On-Vehicle Inspection
2AZ-FXE ENGINE MECHANICAL: ENGINE: ON-VEHICLE INSPECTION
1. INSPECT COOLANT (for Engine)
(a) Inspect the engine coolant On-Vehicle Inspection.
2. INSPECT ENGINE OIL
(a) Inspect the engine oil Testing and Inspection.
3. INSPECT SPARK PLUGS
(a) Inspect the spark plugs Testing and Inspection.
4. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY
(a) Remove the air cleaner filter element sub-assembly.
(b) Visually check that the air cleaner filter is not excessively damaged or oily. If necessary, replace the air cleaner filter.
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.
(c) Install the air cleaner filter element sub-assembly.
(d) Install the air cleaner cap.
5. INSPECT IGNITION TIMING
(a) Warm up and stop the engine.
HINT
A warmed up engine should have an engine coolant temperature of over 80°C (176°F), an engine oil temperature of 60°C (140°F), and the engine speed should be stabilized.
(b) Put the engine in inspection mode Component Tests and General Diagnostics.
(c) When using the Techstream:
(1) Connect the Techstream to the DLC3.
(2) Start the engine and run it at idle.
(3) Turn the Techstream on.
(4) Enter the following menus: Powertrain / Engine / Data List / IGN Advance.
Standard ignition timing:
13 to 17° BTDC at idle
NOTICE:
* 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 park.
HINT
Refer to the Techstream operator's 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 of the Data List.
(8) Perform the Active Test.
Standard ignition timing:
8 to 12° BTDC at idle
NOTICE:
* 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 park.
HINT
Refer to the Techstream operator's manual for further details.
(d) 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.
(2) Remove the No. 1 engine cover.
(3) Pull out the wire harness as shown in the illustration. Connect the clip of the timing light to the wire harness.
NOTICE:
Use a timing light that detects the primary signal.
(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 park.
* Check the ignition timing with the cooling fans off.
* Turn off all the electrical systems and the A/C.
HINT
Run the engine at 1500 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:
13 to 17° BTDC at idle
NOTICE:
* When checking the ignition timing, the transaxle should be in park.
* Check the ignition timing with the cooling fans off.
* Turn off all the electrical systems and the A/C.
(7) Confirm that the ignition timing advances immediately when the engine rpm is increased.
(8) Remove the timing light from the engine.
Install the No. 1 engine cover.
6. INSPECT ENGINE IDLE SPEED
(a) Warm up the engine.
HINT
A warmed up engine should have an engine coolant temperature of over 80°C (176°F), an engine oil temperature of 60°C (140°F), and the engine speed should be stabilized.
(b) Put the engine in inspection mode Component Tests and General Diagnostics.
(c) When using the Techstream:
(1) Connect the Techstream to the DLC3.
(2) Start the engine and run it at idle.
(3) Turn the Techstream on.
(4) Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
Standard idle speed:
850 to 950 rpm
NOTICE:
* Check the idle speed with the cooling fans off.
* Turn off all the electrical systems and the A/C.
* When checking the idle speed, the transaxle should be in park.
HINT
* Refer to the Techstream operator's manual for further details.
* If the speed is not as specified, check the air intake system.
(d) When not using the Techstream:
(1) Using SST, connect the tachometer tester probe to terminal 9 (TAC) of the DLC3.
SST : 09843-18030
(2) Check the idle speed.
Standard idle speed:
850 to 950 rpm
NOTICE:
* Check the idle speed with the cooling fans off.
* Turn off all the electrical systems and the A/C.
* When checking the idle speed, the transaxle should be in park.
HINT
If the speed is not as specified, check the air intake system.
(3) Disconnect terminal 9 (TAC) of the DLC3.
7. INSPECT COMPRESSION
(a) Warm up and stop the engine.
HINT
A warmed up engine should have an engine coolant temperature of over 80°C (176°F), an engine oil temperature of 60°C (140°F), and the engine speed should be stabilized.
(b) Put the engine in inspection mode Component Tests and General Diagnostics.
(c) Disconnect the air cleaner cap sub-assembly.
(d) Remove the ignition coil assembly Removal.
NOTICE:
If the ignition coil assembly connector is disconnected because DTC is detected in inspection, always reconnect it.
(e) Remove the spark plugs Removal.
(f) Check the cylinder compression pressure
(1) Insert a compression gauge into the spark plug hole.
(2) Connect the Techstream to the DLC3.
NOTICE:
Check the HV battery voltage in the Data List to ensure that the battery is fully charged.
(3) Turn the Techstream on.
(4) Enter the following menus: Powertrain / Hybrid Control / Active Test / Compress Test / On.
(5) Fully depress the acceleration pedal.
(6) Depress and hold the brake pedal, and turn the power switch on (READY). Then check the compression pressure.
Standard compression pressure:
1.3 MPa (13.3 kgf/cm2, 189 psi)
Minimum pressure:
1.0 MPa (10.2 kgf/cm2, 145 psi)
Standard difference between each cylinder:
0.1 MPa (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 compression pressure of the other cylinders 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 check the compression pressure 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 spark plugs Installation.
(h) Install the ignition coil assembly Installation.
(i) Connect the air cleaner cap sub-assembly.
NOTICE:
After performing all the procedures, be sure to clear DTCs stored in the memory. Then, check that the normal system code is output.
8. INSPECT CO/HC
(a) Put the engine in inspection mode Component Tests and General Diagnostics.
(b) Start the engine.
(c) Keep the engine speed at 2500 rpm for approximately 180 seconds.
(d) Insert the CO/HC meter testing probe at least 40 cm (1.31 ft.) into the tailpipe during idle.
(e) 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.
(f) If the CO/HC concentration does not comply with regulations, troubleshoot in the order given below.
(1) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
(2) See the table below for possible causes, then inspect and correct the applicable causes if necessary.
