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MS3 Knock Module Kit
MS3 Knock Module Kit
MS3 Knock Module Kit
MS3 Knock Module Kit
MS3 Knock Module Kit

MS3 Knock Module Kit

5 out of 5 based on 3 customer ratings
(3 customer reviews)



Out of stock

SKU: MS3Knock-K Category:


This add on board solders on top of the MS3 daughter board and gives you two channels of knock input that the MS3 can use to retard spark. Using this module will give you a much more sophisticated knock detection circuit than on any previous MegaSquirt knock detection. Features include a programmable bandpass filter, levels that change with RPM, the ability to assign different cylinders to different sensors, and different gain levels for each cylinder. See the MS3 manual for details.

We carried out our own testing with a Bosch 0 261 231 008 sensor – this is a broadband (non-resonant) sensor type that has no built in filtering, so it can be used with a wide variety of bore sizes. Similar Bosch sensors should also work (most of these only differ in their packaging – the Bosch  0 261 231 006, for example, uses the same connector as EV1 injectors, with the connector on the sensor body). This knock module can also be used with tuned knock sensors if they are tuned to your engine’s bore size.

This board only works with MS3.

Note: If you are ordering the knock module with an assembled MS3, we can install it in the MS3 for an extra $15 charge when the ECU is built. Please make a note of this in the Comments field when you place the order, or this will be shipped as a separate part. However, if you need an assembled MS3 with knock module installed, you may also want to consider the MS3-Pro, as this includes the knock conditioner and real time clock circuit as standard equipment.

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3 reviews for MS3 Knock Module Kit

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I have an engine with more than two knock sensors. Can I use multiple modules to read four knock sensors?

  • The MS3 only supports two knock sensors, but you should be able to make two sensors work for your engine.

Where is this board made?

  • The PCB is made in the USA and assembly takes place in Gainesville, Georgia, USA.

I ordered this installed in an MS3 V3.57. What pins will it use for the knock input?

  • Our solder tech will connect knock input 1 to DB15 pin 10 and knock input 2 to DB15 pin 11 unless you request other pins by special order.

How do I wire up the Bosch 0 261 231 008 sensor?

  • Pin 1 – knock sensor input on ECU.
  • Pin 2 – sensor ground.
  • Pin 3 – connect to shield, if using shielded wire.

Questions & Answers

    Can this knock module (be modified to) function as an external conditioner for MS2? (one way or another).
  1. 0 votes
    Q Can this knock module (be modified to) function as an external conditioner for MS2? (one way or a...... Read more
    Asked by Rob

    If this is an MS2 V3.0 or V3.57, it would be considerably less time and expense to upgrade to MS3. The knock IC on this board needs to interface directly to a processor over SPI, and the MS2 processor's SPI port is tied up running the ignition in MS2/Extra code.

  2. How long it takes to come to German
  3. 0 votes
    Q How long it takes to come to German
    Asked by Mohamed

    The post office claims that shipping time is 3-5 days, but in practice, it's usually around 10 to 14 business days once time to get through the customs office is included.

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