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Practical Standalone Tuning: Trigger Mode

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Trigger Mode


00:00 Now that we've talked about the various types of trigger input, we want to see how to actually set this up in the ECU.
00:07 As I mentioned most ECUs provide preset trigger modes to suit a range of popular engines which makes our job easy as there isn't so much to adjust.
00:17 Since our M150 is preconfigured for the Toyota FA20 engine, we can't adjust the trigger mode.
00:23 Let's have a look though at how we'd do this in Motec's 100 Series ECU Manager.
00:29 If we go to the sensor setup menu and select ref sync sensor setup, we get a menu dedicated to setting up the trigger inputs.
00:38 The main parameter here is the ref sync mode.
00:41 If we press F1 for help and cycle through to the OEM modes, you can see all the available trigger modes.
00:48 These are designed to suit specific types of factory engine.
00:53 We're going to configure the ECU to suit a Mitsubishi Evo 6 engine, and Motec provide a datasheet to help configure the inputs to suit.
01:02 This datasheet can be downloaded from Motec's website, but we can see the relevant information here.
01:08 When we're setting up the trigger mode, all we need to do is copy the information from the datasheet into the ref sync setup menu.
01:17 The CRIP function is Motec's way of telling the ECU where TDC on Number One cylinder occurs.
01:23 We're going to look at setting this function a little later, but the datasheet should get the trigger setup close enough that the engine will start and run.
01:31 Once we've configured the trigger setup, we can test it at cranking speed to make sure the ECU is seeing both trigger inputs and there are no errors being recorded.
01:41 We can do this by disabling the fuel pump and cranking the engine.
01:46 Most ECUs have a status display that will let us check that the ECU is receiving valid signals from the trigger inputs.
01:52 If this is okay, we also want to check the RPM being displayed on the laptop.
01:58 This should be a sensible value of around 100 to 300 RPM, and it shouldn't be changing erratically.