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Complete Guide: Toyota Camry SV21 2.0L 3S-FE Engine ECU 89661-32222 / 175000-2321 (1987–1992) | Genuine OEM Engine Control Unit

by Shiraz Amjad 23 Nov 2025
Complete Guide: Toyota Camry SV21 2.0L 3S-FE Engine ECU 89661-32222 / 175000-2321 (1987–1992) | Genuine OEM Engine Control Unit, automan spare parts

Introduction: Why Buy from AutoMan Spare Parts

Welcome to AutoManSpareParts.com, your trusted global source for genuine OEM ECUs, engine computers, and control modules.
We are proud to be Africa’s No.1 OEM ECU supplier, offering the largest range of authentic ECUs, cheapest wholesale rates, and fast worldwide shipping including USA, Mexico, Middle East, and Europe.
If you need a tested, original Toyota Camry SV21 3S-FE ECU, you’re in the right place.

Toyota Camry SV21 2.0L 3S-FE ECU 89661-32222: Complete Guide

What Is the Toyota Camry SV21 ECU?

The Engine Control Unit (ECU) is the brain of the Toyota Camry SV21’s 3S-FE engine system. It controls fuel mapping, ignition timing, emissions, idle stability, and ensures smooth engine performance.

The OEM numbers for this ECU are:

  • 89661-32222

  • 175000-2321

This unit fits the 1987, 1988, 1989, 1990, 1991, and 1992 Toyota Camry SV21 2.0L 3S-FE.

  • Toyota Camry SV21 ECU 89661-32222

  • 3S-FE engine control unit 175000-2321

  • Toyota Camry 1987–1992 ECU replacement

  • OEM Toyota ECU for Camry SV21

  • Genuine Toyota engine computer 3S-FE

  • Toyota Camry ECU troubleshooting

  • Best price OEM Toyota ECU

  • Camry SV21 3S-FE ECU compatibility guide

Key Features of the OEM ECU 89661-32222

  • Genuine Denso-manufactured OEM ECU

  • Plug-and-play fit for 3S-FE 2.0L engine

  • Correct fuel and ignition mapping

  • Restores original engine power

  • Long lifespan and high reliability

  • Fully compatible with original Camry wiring harness

Does This ECU Require Programming?

For Toyota Camry SV21 (1987–1992) models, the ECU 89661-32222 does NOT require coding or programming when replacing it.

Simply plug in the new OEM ECU and the car will start normally if:

  • The part number matches

  • The wiring harness is intact

  • No other engine sensors are faulty

This makes ECU replacement easy and cost-efficient.

Symptoms of a Failing Toyota Camry SV21 3S-FE ECU

Common warning signs include:

  • Hard starting

  • Random stalling

  • Rough idle

  • Weak acceleration

  • No injector pulse

  • Engine misfire

  • Check engine light that won’t clear

  • Fuel smell from unregulated mixture

Why Choose a Genuine OEM ECU Over Aftermarket?

OEM Toyota ECUs offer:

  • Exact calibration for the 3S-FE engine

  • Better durability

  • Correct fuel/air ratios

  • Zero compatibility issues

  • Long-term reliability

Aftermarket ECUs often cause misfires, incorrect readings, and sensor communication errors.

Compatibility Table

Toyota Camry SV21 2.0L 3S-FE (1987–1992) Compatibility

Model Engine Years OEM ECU Number
Toyota Camry SV21 3S-FE 2.0L Petrol 1987 89661-32222 / 175000-2321
Toyota Camry SV21 3S-FE 2.0L Petrol 1988 89661-32222 / 175000-2321
Toyota Camry SV21 3S-FE 2.0L Petrol 1989 89661-32222 / 175000-2321
Toyota Camry SV21 3S-FE 2.0L Petrol 1990 89661-32222 / 175000-2321
Toyota Camry SV21 3S-FE 2.0L Petrol 1991 89661-32222 / 175000-2321
Toyota Camry SV21 3S-FE 2.0L Petrol 1992 89661-32222 / 175000-2321

Installation Tips

  • Disconnect battery before installation

  • Check all grounds and harness plugs

  • Use OEM sensors for best results

  • Replace any corroded connectors

  • Plug the new ECU firmly into the factory socket

TLDR

The Toyota Camry SV21 Engine ECU 89661-32222 / 175000-2321 is a genuine OEM computer that fits 1987–1992 Camry 3S-FE models. It requires no programming, offers full compatibility, solves misfires and starting issues, and restores factory performance. AutoMan Spare Parts offers the best global prices and fastest worldwide shipping.

FAQ

1. Does the Toyota Camry SV21 ECU need programming?

No. This ECU is plug-and-play for all 3S-FE SV21 models (1987–1992).

2. What are the OEM part numbers?

89661-32222 and 175000-2321.

3. How do I know if my Camry ECU is bad?

Symptoms include stalling, no start, misfires, fuel smell, or random check engine lights.

4. Can I install this ECU myself?

Yes. It’s simply plug-and-play. Just disconnect the battery beforehand.

5. Why buy from AutoMan Spare Parts?

We offer genuine OEM tested ECUs, the biggest inventory in Africa, lowest international prices, and fast global shipping.

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