Toyota Part Number 89661-F0220 is a genuine OEM Engine Control (ECU / ECM) unit designed for Toyota Hilux (GUN series) diesel engines. Manufactured to Toyota’s strict standards, this control unit ensures reliable performance, optimal engine management, and compliance with emissions regulations.
Specifications:
Part Name: Engine Control / Computer Engine Control Unit (ECU / ECM)
OEM Part Number: 89661-F0220
Brand: Toyota Genuine Parts
Material / Build: High-quality electronic module, sealed for protection
Origin: Japan (“Made in Japan”) Mag Engines+2Amayama+2
Weight: Approx ~1.2–1.5 kg depending on packaging Amayama+2Mag Engines+2
Vehicle Compatibility:
Toyota Hilux GUN125 (Diesel) toyotahiluxpart.com+1
Likely other Hilux / 4Runner models using the same engine control system (verify with VIN / engine code) MegaZip+1
Functions & Benefits:
Manages fuel injection, ignition timing, and other engine parameters to ensure smooth operation and reliable power delivery PartSouq+1
Improves fuel efficiency and helps reduce emissions by optimizing engine air-fuel mixture and combustion cycles PartSouq
Helps maintain stable idling, acceleration, and overall engine responsiveness
OEM accuracy ensures compatibility and reduces risk of engine faults or check-engine light triggers
Robust design to withstand vibration, heat, and moisture (as expected from factory ECU modules)
Common Symptoms of a Failing ECU (for Customer Awareness):
Engine misfires, rough idle or stalling
Poor acceleration or inconsistent power delivery
Vehicle may not start or may show “Check Engine” warning continuously
Abnormal fuel consumption or failed emissions test
Usage & Installation Notes:
Must be matched with vehicle’s VIN / engine code to ensure correct programming and compatibility
When replacing, often advisable to have diagnostics done to verify ECU is actual failure
Installation by qualified automotive electrician or technician recommended
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