Road Tuning: Output Setup and Testing
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Output Setup and Testing
02.04
| 00:00 | \Once we've configured and tested all the inputs to the ECU, we want to go through the same process with any outputs we're using. |
| 00:07 | The outputs you'll use will depend on your engine and how complicated your ECU installation is. |
| 00:13 | These include drives for fuel pumps, cam control solenoids, auto speed control solenoids, or gear shift lights. |
| 00:21 | It can be really frustrating getting to the point of tuning, only to find a critical output isn't working. |
| 00:27 | This wastes time and money where you have to fix the problem before you can continue tuning. |
| 00:33 | To show you how the process works, we're going to check the operation of the fuel pump. |
| 00:38 | If we go to the ECU settings menu and type fuel pump, we can see that it is configured on ignition drive five. |
| 00:46 | If we click on this, we can then change the function from fuel pump to test on. |
| 00:51 | This will turn the output on, and we should be able to hear the fuel pump operating. |
| 00:56 | After confirming the operation, remember to turn the function back to fuel pump. |
| 01:02 | We can also test the operation of the radiator fan in a similar way. |
| 01:06 | If we type fan into the settings menu search box, we can see the radiator fan is assigned to ignition drive six. |
| 01:15 | If we click on this, we can set the function to test on and the fan will run. |
| 01:21 | Testing any other outputs can be completed in a similar way. |
| 01:25 | Often with a simple switched output like a cam control solenoid or idle speed control solenoid, it can be easier to test these by supplying them with a low frequency pulse width modulated signal. |
| 01:37 | We can do this by selecting Test PWM instead of Test on. |
| 01:41 | This way you'll be able to hear the output buzzing in the engine bay. |
| 01:46 | If you want to check which output is active, you can unplug it and the buzzing will stop. |
| 01:51 | If you're using a PWM test mode, make sure to set the frequency to around 20 hertz as some outputs won't operate above this frequency. |
