Road Tuning: Trigger Setup
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Trigger Setup
01.43
| 00:00 | The trigger inputs are some of the most critical that the ECU receives, as every calculation is based on the engine RPM and engine position. |
| 00:09 | If this information is inaccurate, you will have a lot of trouble when you start tuning. |
| 00:14 | Since trigger set up is so important, we've separated it into its own module to make it easy to reference when you need to go through the configuration. |
| 00:23 | Most modern engines will provide two trigger inputs. |
| 00:27 | One will provide the ECU with engine speed, while the other will tell the ECU which cylinder's firing. |
| 00:34 | While both inputs are needed for sequential injection and direct fire coil on plug ignition, many older engines, particularly those with distributors, will provide only an engine speed input. |
| 00:46 | Modern engines with variable cam control will also have a cam position sensor for each variable cam shaft so the ECU knows what position the cam is in. |
| 00:57 | The principle for setting the different inputs up is the same regardless which particular input you're considering. |
| 01:03 | There are some set up differences though, depending on if your sensor is a reluctor sensor or a hall sensor. |
| 01:10 | Fortunately most ECUs simplify the set up process by having pre-configured selections for many popular engines. |
| 01:18 | If your engine is covered, you simply need to select the correct trigger pattern and the ECU will take care of the rest. |
| 01:25 | You'll still need to test the triggering though, to confirm it's working. |
| 01:29 | And we're going to look at some of the more critical adjustments that can be made if you're still having trouble with the default configuration. |
| 01:36 | I'm going to separate these steps into reluctor and hall for simplicity. |
