Up to 08/2009

2GR-FE ENGINE CONTROL: IGNITION SYSTEM: ON-VEHICLE INSPECTION

1. CHECK IGNITION COIL ASSEMBLY AND PERFORM SPARK TEST

(a) Check for DTCs Removal.

NOTICE:
If any DTC is present, perform troubleshooting in accordance with the procedure for that DTC.

(b) Check whether spark occurs.

(1) Remove the 6 ignition coils and 6 spark plugs DTC Check / Clear.

(2) Disconnect the 6 injector connectors.





(3) Install a spark plug to each ignition coil and connect the ignition coil connectors.





(4) Ground the spark plugs.

(5) Check that spark occurs while the engine is being cranked.

NOTICE:
* Ground the spark plugs when checking them.
* Replace any ignition coils that have been subjected to a physical impact.
* Do not crank the engine for more than 2 seconds.
(5) If spark does not occur, perform the following procedure.

(c) Perform the following spark test procedure.

(1) Check that the wire harness side connector of the ignition coil is securely connected.

Result:





(2) Perform a spark test on each ignition coil.

1 Replace the ignition coil with a known good one.

2 Perform the spark test again.

Result:





(3) Perform a spark test on each spark plug.

1 Replace the spark plug with a known good one.

2 Perform the spark test again.

Result:





(4) Check that power is supplied to the ignition coil.





Text in Illustration





1 Turn the engine switch on (IG).

2 Measure the voltage according to the value(s) in the table below.

Standard Voltage:





Result:





(d) Connect the 6 injector connectors.





(e) Install the 6 ignition coils and 6 spark plugs Installation.

2. CHECK SPARK PLUG

(a) Check the electrode using a megohm meter:





Text in Illustration





(1) Using a megohm meter, measure the insulation resistance.

Standard Insulation Resistance:

10 MOhms or more

(1) If the result is below 10 MOhms, clean the plug and measure the resistance again.

(b) Check the electrode without using a megohm meter:

(1) Quickly accelerate the engine to 4000 rpm 5 times.

(2) Remove the spark plug.

(3) Visually check the spark plug.

If the electrode is dry, the spark plug is functioning properly. If the electrode is damp, proceed to the next step.

(c) Check the spark plug for any damage to its threads and insulator.

If there is any damage, replace the spark plug.

Recommended Spark Plug:





(e) Check the spark plug electrode gap.





Maximum Electrode Gap for Used Spark Plug:

1.4 mm (0.0551 in.)

(f) If the gap is greater than the maximum, replace the spark plug.

Electrode Gap for New Spark Plug:

1.0 to 1.1 mm (0.0394 to 0.0433 in.)





(g) If the electrode has traces of wet carbon, clean the electrode with a spark plug cleaner and then dry it.

Standard Air Pressure:

588 kPa (6.0 kgf/cm2, 85 psi)

Standard Duration:

20 seconds or less

HINT
Only use the spark plug cleaner when the electrode is free of oil. If the electrode has traces of oil, use gasoline to clean off the oil before using the spark plug cleaner.