Every 60 thousand km, it is necessary to check the resistance of the wires with an ohmmeter. Wires with increased resistance can cause misfiring and difficulty starting the engine in wet weather. On average, the service life of wires is 58-80 thousand km.
To check the resistance, remove the distributor cap, leaving the wires suitable for it. Connect the ohmmeter lead to the electrodes.
Any wire with a resistance greater than 22 kOhm should be replaced.
It is necessary to check the high voltage wire from the ignition coil by attaching an ohmmeter wire to the center contact of the distributor cap and the end suitable for the ignition coil. If the resistance is greater than 2500 ohms, replace this wire and check the resistance of the wire itself. Resistance above 1500 ohms is reason enough to replace. It should be remembered that the resistance depends on the length of the wire; The longer the wire, the greater its resistance. Thus, if the wires of your car are longer than the original ones, then the resistance is higher, but it should not exceed the above limits.
When installing new wires, replace them to avoid confusion. You need to start by replacing the longest wire. Place the cap tightly on the candle. Route the wires in the same way as before. Fit the caps firmly on the distributor cap and on the ignition coil.