AIM LCU-One S Lambda Controller Without Lambda Probe - (LCU1S)

    The AIM Motorsport LCU-One S Lambda Controller provides accurate monitoring of your engine's Air/Fuel ratio, ensuring it operates at optimum power levels with reliable performance. This advanced controller is compact, lightweight, and offers faster response times, using cutting-edge technology to maintain peak engine performance.

    Key features of the AIM Motorsport LCU-One S Lambda Controller include:

    • Wide band Bosch LSU 4.9 probe compatibility: Utilises the durable Bosch LSU 4.9 sensor, designed to last over 100,000 km, to provide precise lambda value readings, ensuring accurate Air/Fuel ratio monitoring across various fuels including petrol, diesel, and methanol.
    • CAN bus connection: Simplifies installation and allows multiple controllers to be connected, enabling detailed engine management with the ability to monitor each engine bank or cylinder individually.
    • Extensive lambda detection range (0.65 to 1.6): Offers precise measurements for both rich and lean mixtures, crucial for maintaining optimal engine performance and preventing potential damage.
    • Configurable Stoichiometric ratio: Supports a wide range of fuel types, allowing you to fine-tune the engine's fuelling for different fuels such as biofuel and ethanol, ensuring versatility across various engine setups.
    • Real-time Air/Fuel ratio and probe temperature diagnostics: Provides continuous feedback on your engine's condition, helping you maintain peak performance and quickly address any issues that may arise.
    • Compact and lightweight design: The evolved LCU-One S is smaller and faster than its predecessor, minimising weight and space requirements while delivering quicker data processing for more responsive engine tuning.
    • Compatibility with AIM dash displays and loggers: Seamlessly integrates with devices like the MXL2, MXG, EVO4S, Solo2 DL and MyChron6 / MyChron5 S, allowing you to monitor vital engine metrics directly on your display or data logger.

    Monitoring a high-performance engine’s Air/Fuel ratio is essential to avoid the risk of damage from improper fuelling. Whether running rich or lean, the LCU-One S ensures your engine is consistently tuned for peak power. By delivering precise measurements and real-time diagnostics, it keeps your engine operating within safe limits, allowing you to confidently push performance to the max.

    Achieve optimal engine performance by using the LCU-One S to monitor and fine-tune your Air/Fuel ratio. Protect your investment with reliable, accurate fuelling management for the best results on track.

    20.09.2026, 10:01:59

    Demon Tweeks was established in 1971 to service the needs of the motorsport competitor and our principals of offering top products, quality, service and rapid availability are as important to us today as they were in the very beginning. We are leaders in the supply of race wear, competition and road tuning parts for cars and bikes. Within a staff totalling over 140 is a dedicated sales team servicing upwards of 3000 telephone and online enquiries received every day from the UK and the rest of the world.

    Our impressive 140,000 sq.ft. Superstore and warehousing facility in Wrexham, North Wales allows us to carry around £7 million worth of stock at all times, over 256,000 items – more than any competitor. Our rapid despatch and no quibble money back guarantee are here to give you the customer real confidence when ordering – you can count on us!

    UK DELIVERIES
    All items for sale in our eBay store are held in stock, most being offered with FREE UK MAINLAND DELIVERY (Northern Ireland, Scottish Highlands & Islands, Isle Of Man, Isle Of Scilly, Jersey and Guernsey are not eligible for free delivery unless the item can be sent in the post). If you choose the free delivery, the item will be sent via the most cost effective means possible, i.e. Parcelforce courier or 2nd class post (you can see which in the “Postage, returns and payments” tab). Please note: We are advised by Royal Mail that items sent 2nd class post can take up to a maximum of 14 working days to be delivered.

    OVERSEAS DELIVERIES
    Using eBay’s Global Shipping Program we ship to over 100 countries worldwide — and counting! When you view the item, you’ll see the item price plus estimated shipping and import charges. Once you purchase the item, the final charges appear at checkout. That means no additional charges or surprises when your item arrives. If your parcel is lost or damaged along the way, the GSP protections and policies will cover you.

    CAN I CHANGE MY ADDRESS ONCE I'VE PLACED MY ORDER?
    Please note, we run an automated system on eBay and the address details that come through to our system from eBay are the details you input at the checkout page and this is the address that we have to ship the order to.

    I'VE ADDED A NOTE TO MY ORDER, CAN YOU VIEW IT?
    Not always. As above, because of the automated system we operate and the sheer volume of orders we get, we CANNOT guarantee that we will see any eBay notes that you add to your purchase. If it is something vital to your order, please contact us via the eBay messaging system before purchasing.

    RETURNS
    Goods deemed unsuitable or not required may be returned via eBay for a refund if they are returned to us within a 30 day period from date of original order, subject to the following and depending on reason.

    • The cost of postage and packaging to return the item to us is paid by you, the customer.
    • Items are to be returned unused and returned in their original condition & packaging.

    IMPORTANT
    All returns for items purchased via our eBay store need to be done via your purchase history within eBay by selecting the item/s you wish to return. Click on the item and then more options, request a return choosing the correct reason and we will respond and issue you a returns authorisation number and details to do so.

    We cannot accept responsibility for returned parcels which are undelivered or damaged in transit back to us. Please retain your proof of postage etc.. as you may require it in the event of a claim with your carrier.

    The easiest way to contact us is via the eBay message system.

    Business Hours:
    Monday - Friday: 8.30am - 5.00pm
    Saturday & Sunday: CLOSED
    BANK HOLIDAYS: CLOSED

    * PLEASE NOTE: Messages sent outside the working hours will be answered as quickly as possible during the next working day. Also, during periods of high demand, there may be additional delays in us responding.