Complete Guide: Toyota Estima 2.4 VVTi ECU Engine Control Unit 89666-28090 / 275000-2191

Introduction: Why Buy From Automan Spare Parts?

At AutomanSpareParts.com, we are proud to be Africa’s No.1 supplier of OEM ECUs, offering the largest in-stock inventory, including thousands of genuine Toyota engine control units.

We provide:

• 100 percent original OEM ECUs

• Cheapest prices globally

• Free and fast worldwide shipping

• 30-day replacement warranty

• Expert support for programming and installation

If you need a Toyota Estima 2.4 VVTi ECU 89666-28090 / 275000-2191, we supply fully tested units ready for installation.

What Is the Toyota Estima 2.4 VVTi ECU 89666-28090 / 275000-2191?

The ECU (Engine Control Unit) is the main computer that manages fuel injection, variable valve timing (VVTi), ignition timing, emissions, and overall engine performance.

The part numbers:

• 89666-28090 — Toyota official part number

• 275000-2191 — Denso manufacturer code

This ECU is built for the 2.4L 2AZ-FE VVTi engine, commonly found in Toyota Estima and Previa models.

Key Features and Functions

• Controls air-fuel mixture

• Adjusts VVTi timing for efficiency

• Manages ignition timing

• Regulates emissions

• Communicates with ABS, immobilizer, transmission

• Ensures smooth cold start and idle

Common Symptoms of a Faulty ECU

If your Estima ECU 89666-28090 is damaged, you may experience:

• Hard starting or no start

• Rough idle or stalling

• Gear shifting issues

• VVTi malfunction

• Engine misfire

• Sudden power loss

• Dashboard warning lights

• Immobilizer lockout

If you face these symptoms, replacing the ECU is often the most effective solution.

Does It Need Programming?

Yes.
Most Toyota Estima ECUs require immobilizer programming (key coding) when installed.

Three scenarios:

1. Plug and Play (If Matched Already)

If you buy an ECU that has been pre-programmed or matched to your car’s immobilizer, no additional programming is required.
Automan Spare Parts can provide matched plug-and-play options upon request.

2. Professional Programming Required

Most units need virginizing / resetting before installation.
Your technician will program keys and sync the ECU with the immobilizer.

3. Full Kit Option

If you want to avoid programming, Automan Spare Parts offers:

• ECU

• Immobilizer

• Key

• Ignition barrel

This makes the swap fully plug and play.

Compatibility Guide

Compatible Vehicles (Toyota Estima / Previa)

Cross-Reference Part Numbers

These numbers interchange with the same ECU:

How to Confirm Compatibility

Match any of these:

1. Part number on your ECU label

2. Your vehicle’s VIN number

3. Engine type: 2AZ-FE 2.4 VVTi

Automan Spare Parts provides free VIN checking for accurate match.

Why Buy Your ECU From Automan Spare Parts?

• Largest stock of original OEM ECUs

• Certified testing before shipping

• Cheapest market prices

• Fast and free worldwide delivery

• No.1 ECU supplier in Africa

• 30-day warranty

• Expert guidance on programming

Visit: www.AutomanSpareParts.com

TLDR

• The Toyota Estima ECU 89666-28090 / 275000-2191 controls all engine functions.

• Fits 2.4L 2AZ-FE VVTi Estima/Previa models.

• Requires immobilizer programming unless provided as a plug-and-play kit.

• Automan Spare Parts supplies genuine OEM ECUs at the lowest price with global shipping.

FAQ

1. Is 89666-28090 the same as 275000-2191?

Yes. One is the Toyota number; the other is the Denso code.

2. Does the replacement ECU need programming?

Yes, unless you purchase a plug-and-play or full kit.

3. What engine does this ECU support?

The 2.4L 2AZ-FE VVTi engine.

4. Do you ship to USA, Mexico, UK, Australia?

Yes. We ship globally with fast delivery.

5. Are the ECUs original?

Yes. All units at Automan Spare Parts are 100 percent OEM.