Mazda Miata engine computer price snapshot
- Low
- $30
- Average
- $161
- High
- $705
Vehicle-specific price guide
How much is a used Mazda Miata engine computer?
Asking prices from 304 salvage yards in 36 states, broken down by model year, condition grade, and fitment variant.
SKWritten bySaurabh Kumar · Co-Founder & CTO
SK
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedOct 29, 2026AS
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
Part overview
About the Mazda Miata engine computer
What the engine computer does, common failure signs, and prices across all vehicles: used engine computer price guide →
Also known asECUECMPCMEngine Control ModuleEngine Control UnitPowertrain Control Module
Price summary
A used Mazda Miata engine computer costs $30 to $705, with a median asking price of $166. Based on 476 priced salvage yard listings across the US, compatible across 2016–2025 (10 model years), updated Oct 29, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$178
Grade B (good)$99
USD
Condition comparison
Price by part grade
Grade AClean / low wear$35–$705406 listings
Grade BStandard used$60–$19525 listings
Grade XUngraded$30–$19545 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $35–$705 | 406 | |
| Grade BStandard used | $60–$195 | 25 | |
| Grade XUngraded | $30–$195 | 45 |
Median by grade
Grade price comparison
Grade A$178
Grade B$99
Ungraded$70
Median asking price by seller-reported condition grade · $30–$705 overall range
Regional supply
Where the Mazda Miata engine computer is listed
We found priced Mazda Miata engine computer listings at 304 salvage yards across 36 states. Texas supplies the most, with 157 listings (10% of the total) from 31 yards. Location matters: yards in California ask a median $50, while Illinois yards ask $166, 232% more for the same part. Shipping usually costs less than that gap for smaller parts, so it can pay to buy out of state.
| State | Listings | Yards | Median ask |
|---|---|---|---|
| Texas | 157 | 31 | $120-28% |
| Illinois | 144 | 18 | $166 |
| California | 114 | 17 | $50-70% |
| Pennsylvania | 107 | 18 | $115-31% |
| Indiana | 96 | 11 | $107-36% |
| New York | 92 | 8 | $99-40% |
| North Carolina | 79 | 19 | $156-6% |
| Massachusetts | 79 | 8 | $96-42% |
States with at least 10 priced listings. % is versus the $166 national median.
Replacement cost
What is the Mazda Miata engine computer replacement cost?
- Used part
- $166
- Mazda Miata median asking price
- Labor
- $95–$450
- 1–3 hours at $95–$150/hr
- Estimated total
- $260–$615
- median used part + labor
Labor is a typical independent-shop range for engine computer replacement, not a quote for your vehicle; it does not include programming and key relearn procedure. The part price is the live median from the salvage-yard listings on this page. Full engine computer replacement cost breakdown
Sources
- Labor time estimates: Part Price Guide labor database
Model-year comparison
What does a Mazda Miata engine computer cost by year?
20258 listings$195$75 – $200202430 listings$215$30 – $705202350 listingsFits 6 years$157$60 – $249202150 listingsFits 6 years$157$60 – $249202050 listingsFits 6 years$157$60 – $2492019100 listingsFits 7 years$157$50 – $2592018100 listingsFits 3 years$158$35 – $3302016100 listingsFits 3 years$158$35 – $330
Market analysis
How much does a used Mazda Miata engine computer cost?
Asking prices for a used Mazda Miata engine computer are unusually spread out: the top listing asks more than ten times what the cheapest does, so which unit you pick matters more than the median. Condition matters: grade-A units (lowest mileage, best condition) carry roughly a 80% premium over grade-B stock, with grade-A medians at $178.
Model year matters too: 2019 units carry the lowest median at $157, while 2024 tops the table at $215. Parts from 2018–2024 are interchangeable, so if the 2019 fits your vehicle, it offers the best value across 7 compatible years.
Against comparable vehicles, the Mazda Miata sits 48% above the Honda Accord ($112), 50% above the Honda Civic ($111), and 32% above the Hyundai Elantra ($126) for the same part. The “similar vehicles” cards below open each comparison guide.
Buying a used engine computer: what to check
- Match hardware and service numbers: Ensure hardware revision codes and circuit board part numbers match exactly, as pinouts change mid-model year.
- Inspect multi-pin connector headers: Check header pins for bending, green copper oxidation, or burnt circuit board traces inside the wiring sockets.
- Verify immobilizer programming requirements: Plan for anti-theft security relearn procedures or ECU re-flashing before the replacement computer will start the engine.
- Confirm donor transmission and emissions spec: Ensure the donor vehicle used the same transmission type and regional emissions package to prevent fault codes.
- Check aluminum casing seals: Inspect housing screws and perimeter rubber gaskets for white oxidation or breaks that indicate past water intrusion.
Keep browsing this vehicle
What other Mazda Miata parts are priced?
01wide ±183%
Car Radio
$167median
$40$650
02wide ±201%
Transmission Control Module
$118median
$25$500
03wide ±205%
Strut
$125median
$37$550
04wide ±111%
Brake Caliper
$128median
$25$310
05spread ±55%
Quarter Panel
$550median
$275$880
06wide ±185%
Wheels
$150median
$50$605
07wide ±94%
Axle Shaft
$155median
$50$340
08wide ±96%
Door Assembly
$515median
$150$1,140
09wide ±223%
Air Bag
$216median
$50$1,013
10wide ±89%
Side Mirror
$200median
$70$424
11wide ±231%
Fog Light
$104median
$20$500
12wide ±134%
Window Regulator
$115median
$30$339
Price comparisons
Compare Mazda Miata engine computer prices
Engine Computercompare
HondaAccordvsMazdaMiata
Accord$112
Miata$166
$54 diff8,681 listings
Engine ComputercompareHondaCivicvsMazdaMiata
Civic$111
Miata$166
$55 diff8,516 listings
Engine ComputercompareHyundaiElantravsMazdaMiata
Elantra$126
Miata$166
$40 diff8,072 listings
Engine ComputercompareHondaPilotvsMazdaMiata
Pilot$125
Miata$166
$41 diff5,589 listings
Engine ComputercompareHyundaiTucsonvsMazdaMiata
Tucson$156
Miata$166
$10 diff5,282 listings
Engine ComputercompareToyotaRAV4vsMazdaMiata
RAV4$161
Miata$166
$5 diff4,632 listings
Compare fitments
What do similar vehicles charge for this part?
Acurawide ±167%
Acura ILX
$138median
$40$500
Acurawide ±153%
Acura Integra
$155median
$50$525
Acurawide ±219%
Acura MDX
$135median
$35$625
Acurawide ±162%
Acura RDX
$155median
$42$543
Acurawide ±208%
Acura TLX
$125median
$33$553
Audiwide ±174%
Audi A4
$175median
$35$644
Audiwide ±122%
Audi A6
$184median
$50$500
Audiwide ±188%
Audi Q3
$200median
$50$800
Audiwide ±211%
Audi Q5
$192median
$39$850
Audiwide ±141%
Audi Q7
$249median
$48$748
Mazdawide ±218%
Mazda 3
$101median
$25$465
Mazdawide ±235%
Mazda CX5
$110median
$25$543
Common questions
Mazda Miata engine computer FAQ
How much is a used engine computer for a Mazda Miata?
The median asking price is $166 across 476 priced listings from 304 yards. Grade-A units, the cleanest stock, have a median of $178. 2023 is the cheapest model year we track, with a median of $157.
How much does it cost to replace a Mazda Miata engine computer?
Using a used part, a Mazda Miata engine computer replacement typically runs $260–$615 all-in: the median used engine computer for this model lists at $166, and independent-shop labor for engine computer replacement typically takes 1–3 hours at $95–$150/hr ($95–$450). The labor figure does not include programming and key relearn procedure. Labor is a national part-level estimate, not a quote for your vehicle.
Which Mazda Miata model years does this price guide cover?
This guide currently has year-level pricing for 2025, 2024, 2023, 2021, 2020, 2019, 2018, 2016. Other model years contribute to the overall range where sellers listed them without a year breakdown.
Which Mazda Miata engine computer years are interchangeable?
Salvage-yard interchange data links Mazda Miata engine computer fitments across 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. Searching all 10 years widens the pool of units; confirm the part number against your VIN, since trim or drivetrain can split an interchange group.