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Kdfi

V1.4 PNP M50B20TU Engine Control Unit

$499.00

SKU: 3819

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In Stock
Ships by Aug 31
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$100 Minimum Order
30 Days Return
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Overview

The kdFi V1.4 PNP BMW M50B20TU is a Plug and Play Engine Control Unit designed for M50B20TU engines and compatible with Siemens MS40 housings. It features an Alpha-N based setup, full compatibility with MSextra Software, a 16x16 Fuel Table, and a 12x12 Ignition Table.
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The kdFi V1.4 PNP BMW M50B20TU is a direct-fit Plug and Play Engine Control Unit (ECU) designed for M50B20TU engines, housed within a Siemens MS40 compatible unit. It comes pre-loaded with an initial setup for these specific engines. For those with MS40.0 or MS40.1 ECUs not explicitly listed, direct contact with the manufacturer is recommended. Installation requires several customer-initiated steps, including replacing the crankshaft sensor with one from an M50B25TU (e.g., HELLA 6PU 009 110-541), starting the engine, and performing a custom setup. Please be aware that this product is generally only street legal with special permission in most countries, and users should verify local laws before use on public roads. Automatic transmissions are not currently supported. Key features include an Alpha-N based setup (changeable to MAP sensor via software), suitability for turbo and compressor conversions, full MSextra Software compatibility, and onboard MS2 with MS2extra firmware. It boasts a 16x16 Fuel Table and a 12x12 Ignition Table, along with a USB connector and integrated Wideband Lambda controller. The ECU supports stock coils, injectors, and idle valves, and offers a user-programmable relay output, electronic boost control, and CAN Bus support. It is compatible with the Lambda Sensor LSU 4.2. The package includes the kdFi V1.4 ECU, a USB cable, and the kdFi Manual. As of May 1, 2024, a CD is no longer included; software can be downloaded from the available downloads section.

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.

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Specifications

BrandKdfi
Part Number3819
CategoryIgnitions and Electrical

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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.

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