ENGITECH Ignition Lead Set - NGK

Ignition leads transmit high voltage electricity from the ignition coil to the spark plugs, enabling the spark that ignites the fuel-air mixture in the engine cylinder.

Symptoms include engine misfires, rough idling, poor acceleration, decreased fuel economy, and a Check Engine Light. Visual inspection may reveal cracks, burns, or corrosion.

Silicone is highly resistant to heat, oil, and physical abrasion, making it ideal for the demanding environment of an engine bay, leading to a longer lifespan for the ignition leads.

A wire wound core provides effective suppression of radio frequency interference (RFI), which can disrupt sensitive onboard electronics like the radio or engine management system.

It is strongly advised not to. Using incorrect leads can lead to poor performance, damage to the ignition system, or other engine components. Always confirm exact vehicle fitment.

M4 refers to the type of terminal used for the distributor end, while SAE is commonly used for the ignition cable (coil pack) end. These specifications ensure proper connection to specific components.

It's recommended to inspect ignition leads during routine maintenance, such as oil changes, or at least once a year, looking for any signs of wear or damage.

Ensure all ignition leads are securely connected to both the spark plugs and the distributor cap/coil pack. Verify the firing order and lead routing are correct for your vehicle.

A misfire can trigger the CEL. Double-check all connections and ensure the leads are the correct part number for your vehicle. Consult a diagnostic tool for specific error codes.

Confirm that the leads are seated fully and that no damage occurred during installation. Older spark plugs may also contribute to poor performance; consider replacing them concurrently.