OBD1 Honda ECU Refurbish Service

We proudly offer the most thorough and reliable refurbish service for OBD1 Honda and Acura ECUs, ensuring your classic project runs flawlessly for years to come.

How It Works

This listing includes: free diagnostic, full refurbishment service, and return shipping to you.
You are responsible for shipping your ECU to us.

After placing your order:

1. Complete the form to receive shipping instructions: https://oxytuned.com/service/
2. Track your ECU’s progress in our service queue: https://oxytuned.com/queue
3. After diagnosis, we’ll contact you with any additional recommendations (if applicable).

Why Does My ECU Need to Be Refurbished?

The 1992–1995 Honda/Acura OBD1 ECUs (commonly referred to as “P28”) are notorious for failing due to leaking capacitors. Over the past 30 years, these capacitors have leaked corrosive electrolyte onto the circuit board, which:

• Eats through the protective conformal coating
• Damages the solder mask
• Corrodes the delicate traces that connect critical components

In the past, these ECUs were often discarded and replaced with junkyard units, but dwindling supply has led to skyrocketing prices. Our service offers a better solution: fully restoring your original ECU so it can reliably power your project for years to come, backed by a lifetime warranty on all parts we replace.

(Example of leaking capacitor damage)

Why Choose OxyTuned?

Many cheaper “refurbish” services simply swap the capacitors and call it done. At OxyTuned, we go far beyond that:

• Full board restoration – not just capacitor replacement
• High-quality components – we use Würth capacitors and premium materials
• Lifetime warranty – on every part we replace

We frequently receive ECUs previously “refurbished” by others that fail again — we make sure that never happens to you.

Important Note on Corrosion Repair

This service includes only minor corrosion repair. If your ECU requires extensive corrosion or trace repairs, additional charges may apply. We will contact you with an estimate before performing any extra work.

Our Refurbish Process

Inspection & Diagnosis

• We perform a courtesy inspection and diagnostic to identify existing damage.
• Findings are documented and shared with you.
• If additional repairs or modifications are needed, we’ll contact you for approval before starting work.

Board Preparation

• All electrolytic capacitors and damaged components are removed.
• Both sides of the PCB are stripped of the factory conformal coating and compromised solder mask.
• The board is treated to stop the spread of corrosion and tested for continuity.

Repair & Restoration

• Exposed areas receive fresh solder mask.
• Damaged traces (if approved) are repaired and verified.
• New high-quality Würth capacitors and required parts are installed.
• A fresh UV-reactive conformal coating is applied to both sides for long-term protection.

Reassembly & Testing

• The ECU is reassembled and tested to ensure full functionality.

(Example of stripped circuit board → example of completed refurbishment)