Choosing the Right Spark Plug Wire Set for Your 1985-1996 Mitsubishi Mirage
Get your Mirage running smoothly again by picking the best replacement spark plug wires for its ignition system.
- For most 1985-1996 Mirage owners, NGK or Denso wire sets are the best choice for reliability and proper fit.
- Symptoms of failure include a rough idle, engine hesitation, misfires, and a decrease in fuel economy.
- Replacement is an easy DIY job; just replace one wire at a time to avoid mixing up the firing order.
- It is highly recommended to replace the spark plugs at the same time as the wires for a complete ignition system tune-up.
Is Your Mirage's Engine Running Rough? Check Your Wires.
If your 1985-1996 Mitsubishi Mirage is starting to show its age with a rough idle, hesitation when you accelerate, or poor gas mileage, the spark plug wires could be the culprit. These wires don't last forever. The constant heat from the engine and vibrations can cause the protective insulation to crack and degrade. When this happens, the high voltage meant for your spark plugs can leak out or weaken, leading to a misfire.
Symptoms of Failing Spark Plug Wires:
- Rough Idle: The engine may shake or sound uneven when you're stopped.
- Engine Misfires: You might feel a stutter or hesitation from the engine, especially under load. A flashing check engine light can be a sign of a serious misfire.
- Poor Acceleration: The car may feel sluggish or slow to respond when you press the gas pedal.
- Reduced Fuel Economy: If you're visiting the gas station more often, weak spark could be wasting fuel.
- Difficulty Starting: A weak spark can make it harder for the engine to fire up, especially in cold or damp weather.
Choosing the Right Aftermarket Wires for Your Mirage
For a vehicle like the 1985-1996 Mirage, you don't need to find an expensive dealer part. High-quality aftermarket brands often meet or exceed the original factory specifications and offer great value. Here’s a breakdown of the available brands to help you choose.
Brand Quality Tiers
| Tier | Brands | Best For |
|---|---|---|
| Tier 1: OEM-Equivalent | NGK, Denso | The vast majority of Mirage owners. These brands are original equipment suppliers for many Japanese cars and are widely considered the gold standard for reliability, fit, and performance. For a stock daily driver, you cannot go wrong with either NGK or Denso. |
| Tier 2: Quality Aftermarket | Standard Wires (SMP), Karlyn STI, Walker Products | Owners looking for a dependable, budget-friendly option. These brands produce parts that meet or exceed OEM specifications and are a solid choice for a stock vehicle. Standard Motor Products (SMP) is a well-regarded name in aftermarket parts. |
| Tier 3: Performance-Focused | Taylor Cable, Granatelli | Enthusiasts with modified engines or those who want higher performance. These wires often feature thicker insulation and lower resistance. While they are high-quality, the performance benefits may not be noticeable on a completely stock Mirage engine. |
Pro Tip: For a stock 1.5L or 1.6L Mirage engine, a set from NGK or Denso is the safest and most recommended choice. They are engineered for your vehicle and provide the best combination of performance and longevity without being overly expensive.
How Much Does a New Spark Plug Wire Set Cost?
The cost depends on the brand you choose and whether you do the work yourself. Replacing the wires on a 4-cylinder Mirage is a very simple job that most DIYers can complete in under an hour.
Estimated Cost Comparison
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Set | $22.55 - $90.49 |
| New OEM Set (from dealer) | Varies, often discontinued and hard to find. |
| Shop Labor for Installation | $50 - $125 |
Common Mistake: The most common mistake when replacing spark plug wires is mixing up the firing order. This will cause the engine to run very poorly or not at all. Always replace one wire at a time. Remove the old wire for cylinder 1, then install the new wire for cylinder 1. Then move to cylinder 2, and so on.
Frequently Asked Questions
Should I replace my spark plugs at the same time?
Yes, it is highly recommended. Spark plugs and wires have similar service lives and work together. Replacing them at the same time ensures your ignition system is completely refreshed for optimal performance and prevents you from having to do a similar job twice.
What is dielectric grease and should I use it?
Dielectric grease is a non-conductive silicone grease that you apply to the inside of the spark plug wire boots. It helps seal out moisture and dirt, prevents voltage leaks, and makes it much easier to remove the wires in the future. A small packet often comes with new wire sets, and it's a good idea to use it.
What do different wire diameters (e.g., 7mm, 8mm) mean?
The measurement refers to the total thickness of the wire, including insulation. A thicker wire like an 8mm or 10.4mm wire has more insulation than a standard 7mm wire. This extra insulation provides better protection against heat and voltage arcing, which is beneficial for high-performance or modified engines. For a stock Mirage, a standard 7mm or 8mm wire is perfectly adequate.
Are there any recalls for my Mirage's spark plug wires?
No. There are no specific recalls or Technical Service Bulletins (TSBs) from the NHTSA for spark plug wire sets on the 1985-1996 Mitsubishi Mirage. These parts are considered normal wear-and-tear maintenance items.
Technical Specifications
OEM Part Numbers: MD180171
Most aftermarket sets for the Mirage feature a 7mm or 8mm silicone outer jacket to resist heat and oil, with a wire-wound magnetic core to suppress radio frequency interference (RFI).
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Mitsubishi Mirage: