Practical Standalone Tuning: Output Setup and Testing
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Output Setup and Testing
01.59
| 00:00 | Once we have configured and tested all the inputs to the ECU, we want to go through the same process with any outputs we are using. |
| 00:07 | The outputs you use will depend on the engine and how complicated your ECU installation is. |
| 00:12 | These could include drives for fuel pumps, cam control solenoids, idle speed control solenoids, or gear shift lights. |
| 00:20 | It can be really frustrating getting to the dyno only to find that a critical output isn't working. |
| 00:25 | This wastes time and money while you have to fix the problem before you can continue tuning. |
| 00:31 | To show you how the process works, we are going to check the operation of the engine fan. |
| 00:36 | If we go to the All Calibrate menu and type Toyota fan, we can see all the settings for the cooling fans. |
| 00:43 | In this installation, there are two fans controlled by separate relays, and the setup for these relays can be configured here. |
| 00:51 | You can see the output resources assigned to each fan relay. |
| 00:55 | We also have temp thresholds for low, medium, and high-speed operation. |
| 01:01 | In this case, the easiest way to test the fans is to set the operation temperature below the current engine temp. |
| 01:07 | The fans should then switch on at the appropriate speed. |
| 01:11 | One point with cooling fans is to make sure that the fan is spinning the correct way. |
| 01:16 | It's easy to have these wired the wrong way and they won't help cool the engine. |
| 01:21 | Testing any other outputs can be completed in a similar way. |
| 01:25 | Often with a simple switch to output like a cam control solenoid or an idle speed solenoid, it can be easy to test these by supplying them with a low-frequency pulse-width modulated signal. |
| 01:37 | This way, you'll be able to hear the output buzzing in the engine bay. |
| 01:41 | If you want to check which output is active, you can unplug it and the buzzing will stop. |
| 01:47 | If you are using a PWM test mode, make sure you set the frequency to around 20 Hz, as some outputs won't operate much above this frequency. |
