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Ignitions and Electrical› Wiring Harnesses

ECU Master

Plug and Play Adapter Harness

$899.00 $849.00 Save $50.00

SKU: WHPIS3001

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The ECUMaster WHPIS3001 is a plug-and-play adapter harness designed for the installation of an EMU Black ECU. It is compatible with select Lexus models, specifically the 2001 IS300 and the 1998-2001 GS300. This harness allows for the integration of the EMU Black while retaining the original ECU to manage automatic transmission functions, if applicable.
Show original supplier description
The ECUMaster WHPIS3001 is a plug and play adapter harness specifically designed to facilitate the installation of an ECUMaster EMU Black ECU in select Lexus and Toyota vehicles. This parallel harness ensures that the original ECU is retained to manage the automatic transmission, dash cluster, HVAC system, and ETSC-i throttle body, while the EMU Black takes over primary engine control. This adapter harness offers compatibility with a range of vehicles, including the 2001 Lexus IS300 (JCE10) with a 2JZ-GE VVTi engine, 1998–2001 GS300 (JZS160) with a 2JZ-GE VVTi, 1997–2005 Aristo (JZS161) with a 2JZ-GTE VVTi, 1998–2001 SC300 (JZZ31) with a 2JZ-GE VVTi, 1999-2003 Crown (JZS171) with a 1JZ-GTE VVTi, and 2000–2007 Mark II (JZX110) with a 1JZ-GTE VVTi. The kit includes the adapter harness itself, an Intake Air Temp Sensor Kit, and a Bosch 4.9 Wideband O2 sensor.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandECU Master
Part NumberWHPIS3001
CategoryIgnitions and Electrical

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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