Ignitions and Electrical› Computers, Chips, Modules and Programmers

ECUMaster

EMU Black Wideband Controller Kit

$139.00

SKU: WHPWB491

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

This kit enables accurate air-fuel ratio monitoring using an onboard wideband oxygen sensor controller. It includes a Bosch LSU 4.9 sensor for reliable data crucial for engine performance and tuning. The EMU Black is also compatible with Bosch LSU 4.2 sensors.
Show original supplier description
The ECUMaster WHP Wideband Oxygen Sensor Kit, model WHPWB491, is engineered for use with the ECUMaster EMU Black. This comprehensive kit allows for precise air-fuel ratio (AFR) monitoring, a critical factor in optimizing engine performance and achieving accurate tuning. By integrating the onboard wideband oxygen sensor controller, the kit provides high-resolution data essential for engine management. The core of this kit is the Bosch LSU 4.9 wideband oxygen sensor, known for its reliability and accuracy in delivering lambda readings. The included harness features FCI SICMA 2.8 terminals, ensuring a secure and robust connection. It's important to note that while this kit specifically uses the LSU 4.9 sensor, the ECUMaster EMU Black is also capable of supporting the Bosch LSU 4.2 sensor. The kit includes one Bosch LSU 4.9 Wideband Oxygen Sensor and a 6-foot sensor harness equipped with FCI SICMA 2.8 terminals. Installation diagrams and troubleshooting guides for the EMU are available for download, providing detailed instructions to assist with setup.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandECUMaster
Part NumberWHPWB491
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy