externalsensorinput
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externalsensorinput [2024/03/15 11:16] (current) |
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| Note that the following lists out all the available inputs on the 1G and 2G DSM ECUs. Most of these have special cases associated with them to be useful as a general purpose analog input. The most freely available inputs are the EGRTemp input on a 1G ECU and the RearO2 and MDP inputs on the 2G ECU. The rest have special cases to consider with them. Some may even require a [[ECUInputData|buffer circuit]] to be driven properly, depending on which sensors is connected to which input. | Note that the following lists out all the available inputs on the 1G and 2G DSM ECUs. Most of these have special cases associated with them to be useful as a general purpose analog input. The most freely available inputs are the EGRTemp input on a 1G ECU and the RearO2 and MDP inputs on the 2G ECU. The rest have special cases to consider with them. Some may even require a [[ECUInputData|buffer circuit]] to be driven properly, depending on which sensors is connected to which input. | ||
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| + | Reference: [[ecuwiringinformation|ECU Wiring Docs]] | ||
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| ===== 1G ECU ===== | ===== 1G ECU ===== | ||
| - | * EGR Temp Input (ECU Pin 15) | + | * EGR Temp Input (ECU Pin 15) - **Not 100% compatible with some sensors, such as the AEM WB** |
| - | * IAT Input (ECU Pin 8) - **Only usable when using MAFT with "Ignore IAT/Baro" selected.** | + | * IAT Input (ECU Pin 8) - **see IAT/Baro Notes below** |
| - | * Baro Input (ECU Pin 16) - **Only usable when using MAFT with "Ignore IAT/Baro" selected.** | + | * Baro Input (ECU Pin 16) - **see IAT/Baro Notes below** |
| - | * Front O2 (ECU Pin 4) - **Only usable when "Open Loop" option is selected.** | + | * Front O2 (ECU Pin 4) - **Only usable when "Open Loop" option is selected (V2 or V3), or [[v3narrowbandsim|narrowband O2 simulation]] is enabled (V3 only).** |
| - | * Park/Neutral switch (ECU Pin 104) -- **Available on MT ONLY. Used exclusively for clutch cut input.** | + | * Coolant Temp Input (ECU Pin 20) - **(V3 only) - This will leave the car in "Open Loop".** "Lock Coolant Temp" must be selected, to work properly. Use only as a last resort and only temporarily unless you fully understand the issues. |
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| ===== 2G ECU ===== | ===== 2G ECU ===== | ||
| * Rear O2 (ECU Pin 75) | * Rear O2 (ECU Pin 75) | ||
| + | * Front O2 (ECU Pin 76) - **Only usable when "Open Loop" option is selected, or [[v3narrowbandsim|narrowband O2 simulation]] is enabled.** | ||
| * MDP (ECU Pin 73) | * MDP (ECU Pin 73) | ||
| - | * Baro (ECU Pin 85) - **Only usable when using MAFT with "Ignore IAT/Baro" selected. Has internal pull down resistor making it unsuitable for certain sensors ([[2gBaroInputWorkaround|work around]]).** | + | * Baro (ECU Pin 85) - **see IAT/Baro Notes below - Has internal pull down resistor making it unsuitable for certain sensors (see [[2gBaroInputWorkaround|work around]]).** |
| - | * IAT (ECU Pin 72) - **Only usable when using MAFT with "Ignore IAT/Baro" selected.** | + | * IAT (ECU Pin 72) - **see IAT/Baro Notes below** |
| - | * Park/Neutral switch (ECU Pin 91) - **Available on MT ONLY. Used exclusively for clutch cut input.** | + | * Coolant Temp Input (ECU Pin 83) - **(V3 only) - This will leave the car in "Open Loop".** "Lock Coolant Temp" must be selected, to work properly. Use only as a last resort and only temporarily unless you fully understand the issues. |
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| + | ===== EVO1-3 ECU ===== | ||
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| + | * Front O2 (ECU Pin 56) - **Most appropriate for logging a wideband signal used in conjunction with [[v3narrowbandsim|narrowband simulation]]** | ||
| + | * Baro (ECU Pin 65) - **see IAT/Baro Notes below - Has internal pull down resistor making it unsuitable for certain sensors (see [[e3baroinputworkaround|work around]]).** | ||
| + | * IAT (ECU Pin 52) - **see IAT/Baro Notes below** | ||
| + | * Coolant Temp Input (ECU Pin 63) - **This will leave the car in "Open Loop".** "Lock Coolant Temp" must be selected, to work properly. Use only as a last resort and only temporarily unless you fully understand the issues. | ||
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| + | ====== IAT/Baro Notes ====== | ||
| + | In order to free up the IAT and Baro inputs to the ECU, you must be running a non-Mitsubishi style mass airflow sensor. That can either be a GM MAF connected to the ECU with our GM MAF cable or it can be a GM MAF connected to the ECU through a MAF translator. Or it can even be while running speed density mode in ECMLink. | ||
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| + | The point being that you can NOT log an aftermarket sensor on these inputs if you are running a Mitsubishi style mass airflow sensor (1G DSM, 2G DSM, EVO8). | ||
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| + | In addition, if you are running a GM MAF __with__ a MAF translator, then you must also make sure you have selected to [[ignoreiatbaro|Ignore IAT/Baro]]. | ||
externalsensorinput.1201091846.txt.gz · Last modified: 2008/01/23 07:37 by 76.100.119.159
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