Hyundai Veloster Manuals

Hyundai Veloster: Repair procedures - Ignition System - Engine Electrical SystemHyundai Veloster: Repair procedures

On-vehicle Inspection

Spark Test
1.
Remove the engine cover (A).

2.
Disconnect the ignition coil connectors (A).

When removing the ignition coil connector, pull the lock pin (A) and push the clip (B).

3.
Remove the ignition coils (A).

4.
Disconnect the injector connector or extension connector (A).

5.
Using a spark plug socket, remove the spark plug.
6.
Install the spark plug to the ignition coil.
7.
Ground the spark plug to the engine.

8.
Check if spark occurs while engine is being cranked.
To prevent fuel being injected from injectors while the engine is being cranked, disconnect the fuel pump connector.
Crank the engine for no more than 5 ~ 10 seconds.
9.
Inspect all the spark plugs.
10.
Using a spark plug socket, install the spark plug.
11.
Install the ignition coil.

Tightening torque :
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

When inserting ignition coil into the cylinder head cover for spark plug to be inserting ignition coil, the sealing cap of ignition coil must be mated totally with inner side of cylinder head.
12.
Reconnect the ignition coil connectors.

Inspect Spark Plug

1.
Disconnect the ignition coil connectors (A).

When removing the ignition coil connector, pull the lock pin (A) and push the clip (B).

2.
Remove the ignition coils (A).

Tightening torque :
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

3.
Using a spark plug socket, remove the spark plug.
Be careful that no contaminates enter through the spark plug holes.
4.
Inspect the electrodes (A) and ceramic insulator (B).

Inspection Of Electrodes
Condition
Dark deposits
White deposits
Description
-
Fuel mixture too rich
-
Low air intake
-
Fuel mixture too lean
-
Advanced ignition timing
-
Insufficient plug tightening torque

5.
Check the electrode gap (A).

Standard :
0.9 ~ 1.0 mm (0.0354 ~ 0.0394 in.)

Inspect Ignition Coil

1.
Measure the primary coil resistance between terminals (+) and (-).


Standard value : 0.75Ω В± 15%


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