Engine (for Hatchback)

1NZ-FE ENGINE MECHANICAL: ENGINE (for Hatchback): ON-VEHICLE INSPECTION

1. INSPECT COOLANT Testing and Inspection

2. INSPECT ENGINE OIL Testing and Inspection

3. INSPECT BATTERY Testing and Inspection

4. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

(a) Remove air cleaner cap sub-assembly Removal (From 07/2011).

(b) Remove the air cleaner filter element sub-assembly.

(c) 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, clean it with compressed air.
* If any dirt or a blockage remains even after cleaning the air cleaner filter element with compressed air, replace it.

(d) Install the air cleaner filter element sub-assembly.

(e) Install the air cleaner cap sub-assembly Installation (from 07/2011).

5. INSPECT FAN AND GENERATOR V BELT Testing and Inspection

6. INSPECT SPARK PLUG Testing and Inspection

7. INSPECT IGNITION TIMING

(a) When using an Techstream:

(1) Warm up and stop the engine.

(2) Connect the Techstream to the DLC3.

(3) Turn the ignition switch to ON.

(4) Turn the Techstream on.

(5) Start the engine.

(6) Enter the following menus: Powertrain / Engine and ECT / Active Test /Connect the TC and TE1 / ON.

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

(7) Inspect the ignition timing during idling.

Standard ignition timing:

NOTICE:
* Check the ignition timing with the cooling fans off.
* Turn off all electrical systems and the A/C.
* When checking the ignition timing, the transaxle should be in neutral or park.

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

(8) Select the following menu items: Connect the TC and TE1 / OFF.

Turn the ignition switch off.

Disconnect the Techstream from the DLC3.

(b) When not using an Techstream:

(1) Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

Text in Illustration

SST : 09843-18040

NOTICE:
* Be sure to connect the terminals correctly. Failure to do this can damage the engine.
* Check the ignition timing with the cooling fans off.
* Turn off all electrical systems and the A/C.
* When checking the ignition timing, the transaxle should be in neutral or park.

(2) Remove the No. 2 cylinder head cover Removal (from 07/2011).

(3) Pull out the wire harness (brown) shown in the illustration.

NOTICE:
After checking, wrap the wire harness with tape.

(4) Warm up and stop the engine.

(5) Connect the clip of the timing light to the wire harness.

NOTICE:
Use a timing light that detects the first signal.

(6) Start the engine.

(7) Inspect the ignition timing during idling.

Standard 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 transaxle to the neutral position.

(8) Turn the ignition switch off.

Remove the timing light.

Install the No. 2 cylinder head cover Installation (from 07/2011).

(11) Disconnect terminals 13 (TC) and 4 (CG) of the DLC3.

8. INSPECT ENGINE IDLING SPEED

(a) When using an Techstream:

(1) Warm up and stop the engine.

(2) Connect the Techstream to the DLC3.

(3) Turn the ignition switch to ON and turn the Techstream on.

(4) Start the engine.

(5) Select the following menu items: Powertrain / Engine and ECT / Data List / Engine Speed.

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

(6) Inspect the engine idling speed.

Standard Idle Speed:

Text in Illustration

SST : 09843-18040

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

(3) Start the engine.

(4) Inspect the engine idling speed.

Standard Idle Speed:

NOTICE:
* Turn all the electrical systems and the A/C off.
* Inspect the idling speed with the cooling fan off.
* When checking the idling speed, shift the transaxle to the neutral position or the parking position.

(5) Turn the ignition switch off.

(6) Disconnect the tachometer.

(7) Remove SST from terminals 13 (TC) and 4 (CG) of the DLC3.

9. INSPECT VALVE CLEARANCE

(a) Check for noise and vibration.

(1) Check for valve noise or a rough idle.

(2) Judge whether valve clearance needs to be adjustment.

If the valve noise is too loud or the idle is rough, inspect the valve clearance Adjustments.

10. INSPECT COMPRESSION

(a) Warm up and stop the engine.

(b) Remove the No. 2 cylinder head cover Removal (from 07/2011).

(c) Remove the 4 ignition coils Removal (from 07/2011).

(d) Remove the 4 spark plugs Removal (from 07/2011).

(e) Disconnect the 4 fuel injector connectors.

(f) Inspect the cylinder compression pressure.

(1) Insert a compression gauge into the spark plug hole.

(2) Fully open the throttle.

(3) While cranking the engine, measure the compression pressure.

Compression:

980 kPa (10.0 kgf/cm2, 142 psi)

Minimum pressure:

784 kPa (8.0 kgf/cm2, 114 psi)

Difference between each cylinder:

98 kPa (1.0 kgf/cm2, 14 psi) or less

NOTICE:
* Use a fully-charged battery so the engine speed can be increased to 250 rpm or more.
* Inspect the other cylinders in the same way.
* Measure the compression in as short a time as possible.

(4) If the cylinder compression is low, pour a light coat of engine oil into the cylinder through the spark plug hole, then inspect it again.

HINT
* If adding oil increases the compression, the piston rings and/or cylinder bore may be worn or damaged.
* If the pressure stays low, the valve may be stuck or seated improperly, or there may be leakage from the gasket.

(g) Connect the 4 fuel injector connectors.

(h) Install the 4 spark plugs Installation (from 07/2011).

(i) Install the 4 ignition coils Installation (from 07/2011).

(j) Install the No. 2 cylinder head cover Installation (from 07/2011).

(k) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

11. 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 while idling.

(d) Check the CO/HC concentration during idling and when running at 2500 rpm.

HINT
When doing the 2 mode (with the engine idling/running at 2500 rpm) test, the measuring procedures are determined by applicable local regulations.

If the CO/HC concentration does not comply with the regulations, troubleshoot in the order given below.

(1) Check the air fuel ratio sensor operation Data List / Active Test (from 07/2011).

(2) Check the heated oxygen sensor operation Data List / Active Test (from 07/2011).

(3) See the table below for possible causes, then inspect the applicable parts and repair them if necessary.