1. Pengenalan
This manual provides essential information for the proper installation, operation, and maintenance of your Denso Ignition Coil, model 673-1308. This product is designed as a direct replacement part for specific vehicle applications, primarily trucks and vans, ensuring efficient fuel consumption and reliable engine performance. Please read these instructions thoroughly before proceeding with installation or any related procedures.

Figure 1: A black Denso ignition coil, model 673-1308, shown from the front, highlighting its cylindrical body and electrical connector at the top.
2. Maklumat Keselamatan
Always prioritize safety when working on your vehicle's electrical and engine systems. Failure to follow safety precautions can result in injury or damage to the vehicle.
- Putuskan Sambungan Bateri: Before beginning any work, always disconnect the vehicle's negative battery terminal to prevent electrical shock or damage to electronic components.
- Benarkan Enjin Sejuk: Ensure the engine is completely cool before handling any components to avoid burns.
- Pakai Alat Pelindung: Gunakan peralatan pelindung diri yang sesuai, termasuk cermin mata keselamatan dan sarung tangan.
- Rujuk Profesional: Jika anda tidak pasti tentang mana-mana langkah proses pemasangan, sila rujuk juruteknik automotif yang berkelayakan.
- Avoid Contact with High Voltage: Ignition coils generate high voltage. Do not touch the coil or spark plug wires while the engine is running or the ignition is on.
3. Persediaan dan Pemasangan
The Denso Ignition Coil 673-1308 is designed for bolt-on installation. Refer to your vehicle's specific service manual for detailed instructions and torque specifications.
- Penyediaan:
- Pastikan kenderaan diletakkan di atas permukaan yang rata dengan brek letak kereta dihidupkan.
- Turn off the engine and allow it to cool completely.
- Putuskan sambungan terminal bateri negatif.
- Gather necessary tools, which typically include a ratchet, sockets, and possibly a torque wrench.
- Locate and Remove Old Coil:
- Identify the ignition coil(s) that need replacement.
- Carefully disconnect the electrical connector from the top of the coil.
- Unbolt the coil from its mounting location.
- Gently pull the coil upwards to remove it from the spark plug well.

Rajah 2: Sebuah bersudut view of the Denso ignition coil 673-1308, illustrating the overall shape and the male electrical connector.
- Pasang Gegelung Baharu:
- Apply a small amount of dielectric grease to the inside of the spark plug boot on the new coil (if applicable and recommended by vehicle manufacturer).
- Carefully insert the new Denso 673-1308 ignition coil into the spark plug well, ensuring it seats properly onto the spark plug.
- Secure the coil with the mounting bolt(s). Tighten to the vehicle manufacturer's specified torque.
- Reconnect the electrical connector to the top of the coil, ensuring it clicks into place. The connector gender for this coil is male.

Rajah 3: Sebelah view of the Denso ignition coil 673-1308, showing the cylindrical body and the integrated electrical connector, suitable for bolt-on installation.
- Langkah Akhir:
- Sambung semula terminal bateri negatif.
- Hidupkan enjin dan semak operasi yang betul dan sebarang kod masalah diagnostik.
4. Beroperasi
Once correctly installed, the Denso Ignition Coil 673-1308 operates automatically as part of your vehicle's ignition system. Its primary function is to transform the low voltage dari bateri kenderaan ke dalam volum tinggitage required to create a spark at the spark plug. This spark ignites the air-fuel mixture in the engine's cylinders, facilitating combustion and engine operation. Proper functioning of the ignition coils contributes to efficient fuel consumption and smooth engine performance.
5. Penyelenggaraan
Denso Ignition Coils are designed for long-term reliability and typically require minimal maintenance. However, periodic inspection can help identify potential issues before they lead to significant problems.
- Pemeriksaan Visual: During routine engine checks, visually inspect the ignition coils for any signs of physical damage, cracks, corrosion, or discoloration.
- Sambungan Elektrik: Ensure all electrical connectors are securely attached and free from corrosion.
- Penggantian: While individual coils can be replaced, it is often recommended to replace all coils in a set, especially on vehicles where coils are known to fail around the same mileage, to maintain consistent performance across all cylinders.
6. Penyelesaian masalah
If you experience engine performance issues, a faulty ignition coil could be a contributing factor. Common symptoms include:
- Kerosakan Enjin: A noticeable stumble or hesitation in engine operation.
- Terbiar Kasar: The engine runs unevenly when idling.
- Kuasa dikurangkan: A decrease in acceleration or overall engine performance.
- Periksa Lampu Enjin: The illumination of the Check Engine Light on your dashboard, often accompanied by specific diagnostic trouble codes (DTCs) related to ignition system faults.
Langkah-langkah Diagnostik:
- OBD-II Scan: Use an OBD-II scanner to retrieve any stored diagnostic trouble codes. Codes such as P030X (where X is the cylinder number) indicate a misfire in a specific cylinder, often pointing to a faulty ignition coil or spark plug.
- Pemeriksaan Visual: Re-inspect the coil and its connections for any obvious damage or loose wiring.
- Diagnosis Profesional: For complex or persistent issues, it is recommended to seek diagnosis from a qualified automotive technician.
7. Spesifikasi
| Ciri | Spesifikasi |
|---|---|
| Jenama | Denso |
| Nombor Model | 673-1308 |
| Berat Barang (Pek 6) | 3.83 paun |
| Jantina Penyambung | jantan |
| Jenis Pemasangan | Bolt-On |
| Jenis Perkhidmatan Kenderaan | Truck, Van |
| Pengeluar | Auto Extra |
8. Waranti dan Sokongan
For information regarding the product warranty, please refer to the documentation provided with your purchase or contact Denso directly. Technical support and further assistance can be obtained by contacting Denso customer service or visiting their official website. Always provide your product model number (673-1308) when seeking support.





