ecmlink101initialchecks
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| - | ==== AFRatioEst ==== | ||
| - | **NOTE:** With the release of [[v3firmwarechangelog|version 3.19.139]], we have dramatically changed how AFRatioEst is configured. If you have at least version 3.19.139 inside your ECU, you can ignore this entire section because the configuration of AFRatioEst is done for your automatically. You can check to see which version is inside your ECU by reading the "Check your current firmware version" section of [[v3firmwarehowto|this page]]. | ||
| - | === For versions prior to 3.19.139 === | + | |
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| + | ==== AFRatioEst ==== | ||
| AFRatioEst provides an **estimated** A/F ratio based on reported airflow and commanded fuel (injector pulsewidth). This should NOT be used to performance tune your car. It should be used as a check that reported airflow and estimated fuel flow make sense. This display value depends on knowing a LOT about your setup. If you do not provide accurate information here, you will not get accurate results. Garbage in = garbage out. | AFRatioEst provides an **estimated** A/F ratio based on reported airflow and commanded fuel (injector pulsewidth). This should NOT be used to performance tune your car. It should be used as a check that reported airflow and estimated fuel flow make sense. This display value depends on knowing a LOT about your setup. If you do not provide accurate information here, you will not get accurate results. Garbage in = garbage out. | ||
| + | === Versions 3.19.139 and later === | ||
| + | With the release of [[v3firmwarechangelog|version 3.19.139]] of our ECU firmware, we have dramatically changed how AFRatioEst is configured. If you have at least version 3.19.139 inside your ECU, you can ignore this entire section because the configuration of AFRatioEst is done for your automatically, inside the ECU. You can check to see which version is inside your ECU by reading the "Check your current firmware version" section of [[v3firmwarehowto|this page]]. | ||
| + | |||
| + | === Versions prior to 3.19.139 === | ||
| Get AFRatioEst in your graph legend and then edit the display preferences (follow the same procedure as outlined above for BoostEst). You'll need to configure the preferences as exactly as possible. Provide information on injector size, your configured deadtime adjustment, and base fuel pressure. You also need to configure information about the fuel you're running. If you're running regular pump gas, then just leave the defaults of 14.7:1 for actual stoich ratio and 0.760 for specific gravity. The following shows a typical 2G setup configured for 850 injectors and pump gas. | Get AFRatioEst in your graph legend and then edit the display preferences (follow the same procedure as outlined above for BoostEst). You'll need to configure the preferences as exactly as possible. Provide information on injector size, your configured deadtime adjustment, and base fuel pressure. You also need to configure information about the fuel you're running. If you're running regular pump gas, then just leave the defaults of 14.7:1 for actual stoich ratio and 0.760 for specific gravity. The following shows a typical 2G setup configured for 850 injectors and pump gas. | ||
ecmlink101initialchecks.txt · Last modified: 2024/03/15 11:16 (external edit)
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