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externalsensorinput [2009/05/05 02:07] DSMmaniac_Big_O Added Coolant Temp information |
externalsensorinput [2009/09/22 15:00] twdorris |
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Reference: [[ecuwiringinformation|ECU Wiring Docs]] | 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) | ||
- | * IAT Input (ECU Pin 8) - **Requires [[ignoreiatbaro|GM MAFT w/Ignore IAT/Baro]] selected.** | + | * IAT Input (ECU Pin 8) - **see IAT/Baro Notes below** |
- | * Baro Input (ECU Pin 16) - **Requires [[ignoreiatbaro|GM MAFT w/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 (V2 or V3), or narrowband O2 simulation is enabled (V3 only).** | + | * 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).** |
* 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. | * 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. | ||
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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) - **Requires [[ignoreiatbaro|GM MAFT w/Ignore IAT/Baro]] selected. Has internal pull down resistor making it unsuitable for certain sensors (see [[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) - **Requires [[ignoreiatbaro|GM MAFT w/Ignore IAT/Baro]] selected.** | + | * IAT (ECU Pin 72) - **see IAT/Baro Notes below** |
* 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. | * 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. | ||
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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. | ||
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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]]. | ||
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