Ignition Coil Service Kit for Honda 30500-ZE1-033, 30500-ZE1-063 440-120

Q: What are the symptoms of a failing coil?
A. All of these could be from a single coil or multiple coils depending on the vehicle:

• When the coil starts to go bad, you will notice reduced gas mileage. You’ll experience diminished performance and more frequent fill-ups at the gas station. The engine just does not burn all the fuel it needs. If the ignition coils are not firing, the engine just simply cannot burn fuel fast enough.
• The engine turns over easily, but has difficulty starting, requiring you to hold the key in the start position much longer than normal.
• The engine starts misfiring, causing sputtering and jerking.
• The engine starts misfiring, causing sputtering, jerking, backfiring, and check engine light is on.

Any of these symptoms could indicate a need for new coil(s).
Q: What causes an ignition coil to go bad?

• Normal wear and tear or exposure to the elements is the number one reason.
• Damaged or poorly functioning spark plugs.
• Engine vibrations caused by poorly functioning spark plugs.
• Moisture.

Q: How can ignition coils be checked or tested?
A: Take the vehicle to a mechanic or have it scanned with an OBD scan tool.
Q: Can I drive with bad ignition coils?
A: It’s not recommended, but, in most cases, you can still drive the vehicle. However, you really should get it checked IMMEDIATELY! That flashing check engine light is trying to tell you something. Most auto stores will scan it for free. Failure to do so could result in engine and/or catalytic converter failure.
Q: How long does an ignition coil last?
A: Under normal conditions, you can expect to get anywhere from 75,000 – 100,000 miles, considering all the above factors. Results will vary, of course.