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mirobuilds

HIC-1 Replacement

HIC-1 Replacement

$39.99 USD
$39.99 USD
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Mirobuilds HIC-1 VR Conditioning Board Replacement – OBD1 Honda/Acura (1992–1995)

Solve CEL codes 4, 8, and 9 for good!

The factory HIC-1 VR conditioning board inside OBD1 Honda/Acura ECUs (P06, P28, P30, and similar models) is a common failure point. When this board fails, it can cause ignition problems and trigger check engine light codes for TDC (4), CKP (8), and CYP (9) — even if your distributor is functioning correctly.

This replacement board from Mirobuilds is built to identical specifications as the original “NY1-CG” board, ensuring a direct fit and restoring proper VR signal conditioning. Installing this board resolves signal issues and brings your ECU back to reliable operation.

Compatible With:

  • 1992–1995 Honda/Acura OBD1 ECUs (P06, P28, P30, etc.)
  • Direct replacement for HIC-1 (NY1-CG) boards

Symptoms Fixed:

  • Check Engine Light codes 4, 8, 9 (TDC, CKP, CYP)
  • Ignition misfires or no-start conditions caused by failed HIC-1 board

Disclaimer:
Professional installation is highly recommended. This part requires soldering and should only be installed by someone experienced in ECU repair or electronics. Incorrect installation can cause damage to the ECU.
Need help with installation? We also offer this as a service through our OBD1 Honda ECU Diagnostic Service.

Off-Road Use Disclaimer

Disclaimer

Off-Road / Race Use Only
All products and services offered on this website are intended strictly for off-road and race use only. These products may not comply with federal, state, or local emissions, safety, or road-use regulations. It is the sole responsibility of the purchaser to ensure that any modifications comply with all applicable laws and regulations in their area.

No Liability for On-Road Use
By purchasing or installing any products or services from this website, you acknowledge and agree that we are not responsible or liable for any damages, injuries, penalties, fines, or legal issues that may arise from the on-road use of these products. Installation and use of these products on public roads or highways is strictly at your own risk.

Customer Responsibility
The customer assumes full responsibility for:

  • Determining the legality of any product for their intended application and location.
  • The installation and proper use of all products.
  • Any consequences, including but not limited to personal injury, vehicle damage, or legal penalties, that may result from their use.

No Warranty of Compliance
We make no claims, guarantees, or warranties that our products are legal for street use, emissions compliance, or meet any specific regulatory standards outside of their intended off-road/race applications.

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