On-Vehicle Inspection

1UR-FSE ENGINE MECHANICAL: ENGINE (for AWD): ON-VEHICLE INSPECTION

1. CHECK V-RIBBED BELT

(a) Check the belt for wear, cracks or other signs of damage.

If any of the following defects is found, replace the V-ribbed belt.

HINT
* The belt is cracked.
* The belt is worn out to the extent that the cords are exposed.
* The belt has chunks missing from the ribs.

(b) Check that the belt fits properly in the ribbed grooves.

HINT
Check with your hand to confirm that the belt has not slipped out of the groove on the bottom to the pulley. If it has slipped out, replace the V-ribbed belt. Install a new V-ribbed belt correctly.

2. INSPECT V-RIBBED BELT TENSIONER ASSEMBLY

(a) Check that nothing gets caught in the tensioner by turning it clockwise and counterclockwise.

If a malfunction exists, replace the V-ribbed belt tensioner assembly.

3. 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 inspection above again.

If any defects or problems are found during the inspection above, perform a lash adjuster inspection Engine Unit.

4. INSPECT IGNITION TIMING

(a) Warm up and stop the engine.

(b) When using the Techstream:

(1) Connect the Techstream to the DLC3.

(2) Start the engine and idle it.

(3) Turn the tester ON.

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

HINT
Refer to the Techstream operator's manual for further details.

Standard Ignition Timing:

8 to 18° BTDC @ idle

(c) When not using the Techstream:

(1) Remove the V-bank cover.

(2) Remove the 5 clips and air cleaner inlet cover.

(3) Remove the 4 clips and engine room side cover LH.

(4) Remove the 2 bolts and No. 1 air cleaner inlet.

(5) Disconnect the air cleaner cap (for Bank 1).

(6) Remove the 2 nuts and air cleaner case (for Bank 1).

(7) Connect the tester probe of a timing light to the wire of the ignition connector for No. 1 cylinder.

NOTICE:
Use a timing light that detects primary signals.

(8) 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.
* When checking the ignition timing, the transmission should be in neutral.

Using a timing light, check the ignition timing.

Standard Ignition Timing:

8 to 12° BTDC @ idle

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 (for Bank 1) with the 2 nuts.

Torque : 5.0 Nm (51 kgf-cm, 44 in-lbf)

(15) Connect the air cleaner cap (for Bank 1).

(16) Install the No. 1 air cleaner inlet with the 2 bolts.

Torque : 5.0 Nm (51 kgf-cm, 44 in-lbf)

(17) Install the engine room side cover LH with the 4 clips.

(18) Install the air cleaner inlet cover with the 5 clips.

(19) Install the V-bank cover.

5. INSPECT ENGINE IDLE SPEED

(a) Warm up and stop the engine.

(b) When using the Techstream:

(1) Connect the Techstream to the DLC3.

NOTICE:
Switch off all accessories and the A/C before connecting the Techstream.

(2) Race the engine at 2500 rpm for approximately 90 seconds.

(3) Turn the tester ON.

(4) Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Engine Speed.

Standard Idle Speed:

700 to 800 rpm

NOTICE:
When checking the idle speed, the transmission should be in neutral.

HINT
Refer to the Techstream operator's manual for further details.

If the idle speed is not as specified, check the air intake system.

(5) Disconnect the Techstream from the DLC3.

(c) When not using the Techstream:

(1) Using SST, connect a tachometer probe to terminal 9 (TAC) of the DLC3.

SST : 09843-18030

NOTICE:
Confirm the terminal numbers before connecting them. Connecting the wrong terminals can damage the engine.

(2) Race the engine 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.

6. INSPECT COMPRESSION

(a) Warm up and stop the engine.

(b) Remove the V-bank cover.

(c) Remove the 5 clips and air cleaner inlet cover.

(d) Remove the 8 clips and 2 engine room side covers.

(e) Remove the 2 bolts and No. 1 air cleaner inlet.

(f) Remove the 4 nuts and 2 air cleaner assemblies.

(g) Disconnect the cable from the negative (-) battery terminal Removal.

(h) Remove the battery and tray.

(i) Remove the 2 bolts, nut and skid control ECU.

(j) Remove the bolt, 2 nuts and skid control ECU bracket.

(k) Remove the bolt and engine oil level dipstick guide.

(l) Remove the 2 nuts and No. 5 engine cover.

(m) Remove the 2 nuts and No. 6 engine cover.

(n) Disconnect the 8 ignition coil connectors.

(o) Disconnect the 2 injector connectors as shown in the illustration.

(p) Remove the 8 bolts and 8 ignition coils.

(q) Remove the 8 spark plugs.

(r) Disconnect the 4 injector driver connectors as shown in the illustration.

(s) 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.

HINT
Always use a fully charged battery to obtain engine speed of 200 rpm or more.

NOTICE:
The measurement must be done as quickly as possible.

Standard Compression Pressure:

1400 kPa (14.2 kgf/cm2, 203 psi) or higher

Minimum Pressure:

980 kPa (9.9 kgf/cm2, 142 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.

HINT
* 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.

Disconnect the cable from the negative (-) battery terminal Removal.

Remove the battery and tray.

(u) Connect the 4 injector driver connectors as shown in the illustration.

(v) Install the 8 spark plugs.

(w) Install the 8 ignition coils with the 8 bolts.

(x) Disconnect the 8 ignition coil connectors.

(y) Connect the 2 injector connectors as shown in the illustration.

(z) Install the No. 6 engine cover with the 2 nuts.

(aa) Install the No. 5 engine cover with the 2 nuts.

(ab) Install the engine oil level dipstick guide with the bolt.

(ac) Install the skid control ECU bracket with the bolt and 2 nuts.

(ad) Install the skid control ECU with the 2 bolts and nut.

(ae) Install the battery and tray.

(af) Connect the cable to the negative (-) battery terminal.

(ag) Install the 2 air cleaner assemblies with the 4 nuts.

(ah) Install the No. 1 air cleaner inlet with the 2 bolts.

(ai) Install the 2 engine room side covers with the 8 clips.

(aj) Install the air cleaner inlet cover with the 5 clips.

(ak) Install the V-bank cover.

(al) Perform initialization Repair Instruction - Initialization.

NOTICE:
Certain systems need to be initialized after reconnecting the cable to the negative (-) battery terminal.

(am) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

7. 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 idling.

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

HINT
* 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.

(1) Check the A/F sensor Air Fuel Ratio Sensor and heated oxygen sensor Heated Oxygen Sensor operation.

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