1999 Mazda MX-5 Miata Electrical system Problems
- Complaints
- 10about this part
- Share
- 14%of 74 total for the year
- Median mileage
- 30,250miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the electrical system of the 1999 Mazda MX-5 Miata, 14% of the 74 complaints for this model year. Where a mileage was given, the median is 30,250 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The coil pack has failed on my 1999 Mazda miata with less than 42000 miles. My information is that there was a recall on 1999 Mazda proteges for the coil pack failure and that the miata part is identical except for the mounting bracket.”
NHTSA complaint #10086548, filed 2004-08, 41,730 miles“1999 10th anniversary Mazda miata currently with 33,900 miles on it. About 600 miles ago car suddenly started and ran rough with check engine light on. Had code checked and revealed p0300 (random misfire I.e.ignition coil pack failure). Check engine light went out after reading code. Symptom reappeared recently with same code p0300. Replaced spark plug wires with ngk oem wires about a week ago and symptom reappeared this afternoon. I understood this is not covered by the emission control warranty but the subsequent catalytic converter failure is covered under the 8/80.000 emission warranty. …”
NHTSA complaint #10169711, filed 2006-10, 33,300 miles“Intermittent failure of ignition coil pack leading to costly replacement of cat. Converter, o2 sensor, and coil packs. Mfr never covered this under any sort of extended warranty, even though the problem is not uncommon, and evidently bad parts are still in the system. Multiple failure dates.”
NHTSA complaint #10241741, filed 2008-09, 76,000 miles“While driving, the coil pack would cut off, leaving the engine with only 2 operating cylinders. This would happen at any time, but usually when trying to gain speed, necessitating pulling off the road so as to not get hit from behind.”
NHTSA complaint #10018979, filed 2003-05, 30,500 miles“Here is a like to many people like me that had the same problem with their Mazda miata 99+. Around miles the car starts to have ignition problems caused by a faulty coil.”
NHTSA complaint #10008245, filed 2003-02, 25,000 milesRelated service bulletins
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Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 1 | 7% |
| 2002 | 3 | 15% |
| 2000 | 4 | 14% |
| 1999 | 10 | 14% |
| 1997 | 2 | 18% |
| 1996 | 1 | 3% |
| 1995 | 3 | 10% |
| 1994 | 2 | 11% |
| 1992 | 3 | 14% |
| 1991 | 2 | 10% |
Other parts of the 1999 Mazda MX-5 Miata
16 complaintsEngine cooling
11 complaintsTransmission and drivetrain
10 complaintsFuel system
6 complaintsVehicle speed control
6 complaintsBody and structure
5 complaintsAir bags
4 complaintsTires
4 complaintsSteering
3 complaintsSuspension
2 complaintsExterior lighting
1 complaintsSeat belts
1 complaints
← All problems reported for the 1999 Mazda MX-5 Miata
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology