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Up for sale is a used OEM Engine Control Unit (ECU), good condition. PM6-coded ECU, confirmed USA-spec, manual transmission. Capacitors on the circuit board have been replaced, a common preventative repair on this ECU generation to address known cap-leak failures.🔧 Honda Part #: 37820-PM6-A03
Also Compatible (same ECU family, manual, USA/Canada spec): 37820-PM6-A00 / A01 / A02 / A04 / A05 / A08
Type: Engine Control Unit (ECU), OBD0
Engine: D16A6 1.6L SOHC
Transmission: Manual, 5-Speed
Market: USA (except California)
Manufacturer: OEM Honda SupplierFits:
1988–1991 Honda Civic Si, Manual Transmission
1988–1991 Honda CRX Si, Manual Transmission⚠️ Verify your exact part number before purchasing. This is an OBD0 ECU; it is not VTEC and will not work with VTEC engines without a swap harness and tuning. Automatic transmission and California-spec cars use a different revision code. Civic/CRX DX (D15B2, PM5) and STD (D15B1, PM9) models use different ECUs entirely.Condition Notes:
✅ Capacitors replaced on the circuit board (preventative repair)
✅ Good condition, no visible corrosion or damage
✅ Pulled from a running donor vehicleWhy Buy From Us? 🤝
We're a small team that thoroughly inspects and researches every part before listing. We confirm part numbers and interchanges directly against specialist resources so you're not left guessing, which is the extra step most sellers skip!🛡️ 60-Day Return: return for full refund📩 Questions? Message us. We know our parts and respond fast!
