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externalsensorinput [2008/01/29 12:39]
twdorris
externalsensorinput [2024/03/15 11:16] (current)
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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) - **Not 100% compatible with some sensors, such as the AEM WB** 
-  * IAT Input (ECU Pin 8) - **Only usable when using GM MAFT with [[ignoreiatbaro|Ignore ​IAT/Baro]] selected.** +  * IAT Input (ECU Pin 8) - **see IAT/​Baro ​Notes below** 
-  * Baro Input (ECU Pin 16) - **Only usable when using GM MAFT with [[ignoreiatbaro|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 GM MAFT with [[ignoreiatbaro|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) - **Only usable when using GM MAFT with [[ignoreiatbaro|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 ===== 
 + 
 +  * 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. 
 + 
 + 
 + 
 +====== 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. 
 + 
 +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). 
 + 
 +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.1201628377.txt.gz · Last modified: 2008/01/29 12:39 by twdorris