2. Disconnect the high tension wires from the spark plugs on one side and from the ignition coils on the other.
Caution: When removing and installing wires, be sure to hold only the rubber tip of the wire, not the wire itself. Improper handling of high-voltage wires can cause internal breaks in the wires.

3. Using an ohmmeter, check the resistance of all high-tension spark plug wires. If the measured resistance exceeds the maximum permissible value, replace the spark plug wire.
Nominal resistance:
- 2.7L Engine:
- cylinder #1 — 4.39-6.59 kOhm
- cylinder #2 — 2.28-3.43 kOhm
- cylinder #3 — 3.49-5.24 kOhm
- cylinder #4 — 1.9-2.86 kOhm
- cylinder #5 — 3.25-4.87 kOhm
- cylinder #6 — 1.3-1.95 kOhm
- The maximum permissible value (per meter of wire length) is 10 kOhm
Caution: Measure from both ends of the wire. Do not pierce high voltage wires with a needle probe.
Note:
- If the resistance of the high voltage wire exceeds approximately 10 kOhm per 1 m of wire length, it is recommended to replace the wire.
- Installing wires with increased resistance will result in difficulties starting the engine in high humidity conditions.
(The article is based on information website: «www.hyundaibook.ru»)

4. Check the condition of the spark plug contacts and ignition coil (no damage, oxidation, contamination, etc.)
5. Install and connect the high voltage wires.
Caution: Incorrect installation of high-voltage spark plug wires leads to the induction of EMF in adjacent wires, which can cause misfires, jerking and twitching of the car at high speeds.
Engines 2.0 l/2.4 l.
Engine 2.7 l.
