37820-P3G-902 / 37820P3G902 Honda Step Wagon RF1 2.0L DOHC Automatic Engine Control Unit ECU Genuine OEM.

Genuine OEM Honda Engine Control Unit (ECU/ECM) suitable for the Honda Step Wagon RF1 equipped with the 2.0L DOHC B20B petrol engine and automatic transmission. This ECU carries Honda OEM part number 37820-P3G-902.

The ECU is responsible for controlling essential engine management functions including fuel injection, ignition timing, idle speed, emissions control, and communication with the vehicle’s electronic systems. It is an ideal replacement for a faulty ECU causing engine warning lights, poor performance, no-start conditions, misfires, or communication faults.

This unit has been fully tested and is in excellent working condition. It is a direct replacement when the original part number matches. Programming or immobilizer synchronization may be required depending on the vehicle specification. This ECU is commonly associated with JDM Honda Step Wagon RF1 models fitted with the B20B 2.0L DOHC engine and automatic transmission.

Part Numbers

Honda: 37820-P3G-902

Compatibility Table

Make	Model	Chassis	Engine	Engine Code	Fuel	Transmission	Year Range
Honda	Step Wagon	RF1	2.0L DOHC	B20B	Petrol	Automatic	1999–2001
Honda	Step Wagon	RF2	2.0L DOHC	B20B	Petrol	Automatic	1999–2001*

Compatibility may vary by market and production date. Always verify the original part number before purchasing.

Features

Genuine OEM Honda Engine Control Unit
Suitable for Honda Step Wagon RF1 2.0L DOHC Automatic
Fully tested and verified working condition
Direct replacement for matching part numbers
Controls fuel injection, ignition timing, and engine management
Programming or immobilizer synchronization may be required

Honda Step Wagon RF1 ECU 37820-P3G-902
Honda Step Wagon engine control unit
Honda B20B ECU automatic
Honda Step Wagon RF1 ECM
Honda 37820-P3G-902 ECU
Honda Step Wagon engine computer
OEM Honda Step Wagon ECU
Honda B20B engine control module
Honda RF1 automatic ECU replacement
Honda Step Wagon JDM ECU
Honda PGM-FI ECU 37820-P3G-902
Honda Step Wagon ECM OEM

Key features

Genuine OEM Honda Engine Control Unit
Suitable for Honda Step Wagon RF1 2.0L DOHC Automatic
Fully tested and verified working condition
Direct replacement for matching part numbers
Controls fuel injection, ignition timing, and engine management
Programming or immobilizer synchronization may be required
Honda Step Wagon RF1 ECU 37820-P3G-902
Honda Step Wagon engine control unit
Honda B20B ECU automatic
Honda Step Wagon RF1 ECM
Honda 37820-P3G-902 ECU
Honda Step Wagon engine computer

Compatibility Table

Make	Model	Chassis	Engine	Engine Code	Fuel	Transmission	Year Range
Honda	Step Wagon	RF1	2.0L DOHC	B20B	Petrol	Automatic	1999–2001
Honda	Step Wagon	RF2	2.0L DOHC	B20B	Petrol	Automatic	1999–2001*

Compatibility may vary by market and production date. Always verify the original part number before purchasing.

Shipping, returns and warranty

Worldwide shipping with tracking
30-day returns on unused, uninstalled parts
90-day limited warranty against defects

Send us your VIN and we confirm fitment before shipping. See our shipping policy and return policy.

DOHC

Honda Step Wagon Automatic Engine Control Unit ECU 37820-P3G-902 Genuine OEM