Models 1993 and 1994 issue
Examination
1. With the ignition off, disconnect the electrical wiring from the coil. Connect an ohmmeter between the primary circuit terminals of the connector. Compare the measurement results with the requirements of the Specifications. A defective coil must be replaced.
2. Without turning on the ignition, connect an ohmmeter between the explosives (to which the wire coming from the distributor cap is connected) and the positive terminals of the coil. Compare the measurement results with the requirements of the Specifications. A defective coil must be replaced.
Replacement
1. Disconnect the negative cable from the battery.
Attention! If the stereo system installed in the car is equipped with a security code, before disconnecting the battery, make sure that you have the correct combination to activate the audio system!
2. Disconnect the electrical wiring from the coil.
3. Disconnect the BB lead coming from the distributor cap.
4. Turn out fixing bolts and remove the coil from the engine.
5. Installation is carried out in the reverse order.
Note. Before installation, the spark plug wiring connector must be connected to the coil (lubricate the inner walls of the protective cover with dielectric silicone grease).
Models since 1995 vol.
Examination
1. With the ignition off, disconnect the electrical wiring from the coil. Connect the positive ohmmeter lead to terminal #1, the negative lead to terminal #2 of the coil connector. The device should show infinity. Reverse the polarity of the meter connection - this time there should be conduction (but not zero resistance). If the test fails, replace the coil.
2. Connect an ohmmeter between the BB terminal of the wire (going to the spark plug) and terminal #1. The meter should register infinite resistance, otherwise replace the coil.
3. In a similar manner, check the condition of the coils of the remaining spark plugs. Replace defective components.
Replacement
1. Disconnect the negative cable from the battery.
Attention! If the stereo system installed in the car is equipped with a security code, before disconnecting the battery, make sure that you have the correct combination to activate the audio system!
2. Disconnect the electrical wiring from the coil.
3. Loosen the fixing screws and remove the coil by pulling it up with a twisting motion.
4. Installation is carried out in the reverse order.
Note. Before installation, lubricate the inner walls of the protective cover with dielectric silicone grease.