Toyata 1KZ 89661-3D260 ECU repair

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Price Exclusive of GST

Our minimum assessment fee is $150 + GST (Excluding Headlights). This just covers the time to check the unit over. If you proceed with the repair, we’ll apply this to the total cost. Our full terms of trade can be found here. Has repair work been attempted by your customer? Link here !

Heavy Diesel or Industrial Repair you need? Link here for a solution!

International Customers:
When sending a unit from overseas, please declare it as “Repair and Return” with a low customs value (around $100 USD) to avoid unnecessary import fees. - All Repair Prices are quoted in NZD

Toyota 1KZ ECU Repair Service
Common Overdrive & Starting Faults

Parts numbers not limmited to but apply too 

1KZ 89661-3D260 

175800-1681

89661-60520

 

This is a repair service for Toyota 1KZ engine ECUs, which are known to fail with issues such as:

  • Overdrive not engaging

  • Intermittent or complete no-start conditions

These failures are typically caused by aged or leaking electrolytic capacitors, which damage the PCB over time.

Our Repair Process Includes:

  • Chemical removal of conformal coating using a controlled hot bath

  • Desoldering and replacement of all electrolytic capacitors with equal or higher-spec components

  • Track repair and restoration where corrosion or leakage has caused damage

  • Re-coating the ECU with a clear, protective conformal layer

  • Oven bake curing for long-term durability

  • Full reassembly and bench testing

This process restores the ECU’s reliability and avoids the cost and complexity of replacement or reprogramming.