Parts for your 2008 Suzuki Splash-Ignition leads

Ignition Leads on the 2008 Suzuki Splash: Are They Used and What You Need to Know

When looking at the ignition system of the 2008 Suzuki Splash, a common question that pops up is whether ignition leads are part of the setup or not. To get right to the point, the 2008 Suzuki Splash does not use traditional ignition leads, sometimes called spark plug wires. This is a result of the modern ignition system design that most small, economical cars like the Splash have been using for over a decade.

The reason ignition leads are not fitted to the 2008 Suzuki Splash is because it utilises a coil-on-plug ignition system. Unlike older vehicles that had a single ignition coil sending high voltage to the distributor and then through ignition leads to each spark plug, the Splash's engine places individual ignition coils directly on top of each spark plug. This setup completely removes the need for traditional ignition leads.

Modern coil-on-plug systems deliver a more efficient, reliable spark and reduce electrical losses, meaning there are no long wires to degrade or crack over time. Ignition leads in the old style systems were often a weak point due to exposure to heat, vibration, and moisture, leading to high resistance or complete failure. By doing away with them, Suzuki increased the reliability of the ignition system and made servicing easier in some ways.

But what if a vehicle still uses ignition leads? For the sake of understanding the role they play and best practices if they were part of your car, here's an easy explanation on what ignition leads do, and how you should look after them.

Ignition leads are the cables that connect the ignition coil to the spark plugs. They carry the high voltage current needed to create the spark inside the cylinder, which ignites the air-fuel mixture. Without a robust set of ignition leads, the engine could misfire, run roughly, or have reduced fuel efficiency.

Because ignition leads carry high voltage, they are typically made with a thick insulation and sometimes have a resistance wire inside to help suppress electrical noise which could interfere with radios and other electronic systems. Over time, these leads can become brittle from heat or crank down from oil and grime, causing cracks or splits in the insulation. Moisture can also be attracted to damaged leads, increasing resistance and potentially causing misfires.

If your 2008 Suzuki Splash did have ignition leads, regular checks during servicing would be a must. Here are some common signs that your ignition leads might be on the way out:

• Engine misfires or rough running
• Difficulty starting the car, especially in damp conditions
• Visible cracks, splits or corrosion on the leads or connectors
• Reduced fuel economy or power loss
• Unusual noises or electrical interference inside the cabin

When maintaining ignition leads, the best practice includes inspecting them for physical damage and testing their resistance with a multimeter to make sure it's within the manufacturer's recommended range. Keep in mind that higher resistance can mean weak or intermittent sparks.

Replacing ignition leads is usually straightforward, but it's important to buy leads that match the exact specifications for your vehicle to avoid any compatibility issues. Old leads should be removed carefully, noting the routing so the new ones can be installed properly without interference from engine components. Also, it is good practice to replace ignition leads as a set rather than individually to maintain consistent performance.

While the 2008 Suzuki Splash doesn't actually use ignition leads, understanding their purpose and maintenance is useful knowledge for cars that still do. The coil-on-plug system on the Splash offers a more reliable and maintenance-free solution, meaning fewer worries under the bonnet. Still, if you own other vehicles or are into general car maintenance, knowing about ignition leads saves you from a world of frustration down the track.