ADC Inputs - Which ones can we use and how can we use them
Jul 9, 2008, 06:59 AM
#1
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ADC Inputs - Which ones can we use and how can we use them
I wanted to make a thread that would list all the ADC inputs that we are able to use and how we can use them.
I have listed the ADC inputs (taken from mrfred) which I think we can take over. If you can help me to make a list of what each input will accept (ex: 0-5v) and what would be a logical usage for that input.
This way we can figure out what kind of additional sensors or inputs we can log and each user can determine which sensors are best for their needs. I for one would like to be able to log my Aquamist flow sensor voltage, wideband AFR, and have Alt Maps so I would need to use 3 ADC channels.
I have listed the ADC inputs (taken from mrfred) which I think we can take over. If you can help me to make a list of what each input will accept (ex: 0-5v) and what would be a logical usage for that input.
Code:
ADC CHAN MUT_REQUEST USDM Evo IX ECU PIN New Use 09-1 13 (O2sensor_front) 71 0-5v 0A 3C (O2sensor_rear) 73 WideBand Analog Input (0-5v) 0C 39 (Fuel Tank MDP) 93 0-5v 0E-2 87 (Fuel Temperature) 96 AIT Temp (Can only read thermisistor sensors) 0F (*NOT USED*) 83 (AVAILABLE) 64 ALT Map Input (0-5v)
Last edited by dudical26; Jul 9, 2008 at 07:59 AM.
Jul 9, 2008, 07:23 AM
#3
A few comments:
- All the ADC inputs in your list except that fuel temperature ADC are standard 0-5 V ADC inputs.
- The fuel temperature ADC input is set up differently than the other inputs and is only useful for logging a thermisistor type sensor (e.g., a GM air temp sensor or an EGT sensor if its thermisistor type).
- Taking over the fuel tank MDP (fuel tank pressure) ADC input will require disabling the evap OBD-II routines. There is no way to simulate that signal like I've been able to do for other sensors.
- One of the O2 sensor ADC inputs needs to be reading an O2 sensor of some sort.
- All the ADC inputs in your list except that fuel temperature ADC are standard 0-5 V ADC inputs.
- The fuel temperature ADC input is set up differently than the other inputs and is only useful for logging a thermisistor type sensor (e.g., a GM air temp sensor or an EGT sensor if its thermisistor type).
- Taking over the fuel tank MDP (fuel tank pressure) ADC input will require disabling the evap OBD-II routines. There is no way to simulate that signal like I've been able to do for other sensors.
- One of the O2 sensor ADC inputs needs to be reading an O2 sensor of some sort.
Jul 9, 2008, 08:03 AM
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So then I could use the rear 02 sensor input for my wideband, remove both stock 02 sensors. Use the front 02 sensor input for my meth flow sensor. Use the ADC F0 for alt map and use the fuel temp sensor for AIT. And leave the fuel pressure sensor intact untill someone is able to figure out how to disable that test.
If I didn't care about passing emisions I could use the fuel pressure sensor right? I have already removed my EVAP solenoid and the EVAP canister so I already won't pass that test, lol.
If I didn't care about passing emisions I could use the fuel pressure sensor right? I have already removed my EVAP solenoid and the EVAP canister so I already won't pass that test, lol.
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Jul 9, 2008, 10:20 AM
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That sounds great as it will improve the accuracy of the afr readings the ECU sees and it will also free up another ADC. Do you think you will look into tricking the ready test for the EVAP system so that we can get yet another ADC input?
Feb 11, 2015, 04:55 AM
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Hi,
I did my research on ADC inputs, very helpful information here on evolutionm but I still have couple of questions:
I've converted my 2G Talon to use EVOVIII ECU so there are several inputs which were not used on Talon as there are simply less sensors. Is above list in OP of the ALL inputs which can be used for external sensors (0-5V) on EVO ECU or just a "inputs we might want to use or free"?
I've already used Rear O2 sensor input for Wideband, planning to use Fuel Tank Pressure input for Fuel Pressure sender (0-100psi sensor with 0-5V output) and I do have MAP sensor installed in place of MDP. So would like to know which ones I still can use for other project bits
Also a question on MUT table- if we are referring an input as ADC_0F, which PIN on the EVOVIII is this? And if I want to log it with EvoScan- do I need to adjust something in the MUT table itself (EcuFlash) or just go and create a log item in EvoScan with "83" and correct formula? I have all EVAP system eliminated and disabled...
I'm using 96530706 Tephramod v7 ROM at the moment.
I did my research on ADC inputs, very helpful information here on evolutionm but I still have couple of questions:
I've converted my 2G Talon to use EVOVIII ECU so there are several inputs which were not used on Talon as there are simply less sensors. Is above list in OP of the ALL inputs which can be used for external sensors (0-5V) on EVO ECU or just a "inputs we might want to use or free"?
I've already used Rear O2 sensor input for Wideband, planning to use Fuel Tank Pressure input for Fuel Pressure sender (0-100psi sensor with 0-5V output) and I do have MAP sensor installed in place of MDP. So would like to know which ones I still can use for other project bits
Also a question on MUT table- if we are referring an input as ADC_0F, which PIN on the EVOVIII is this? And if I want to log it with EvoScan- do I need to adjust something in the MUT table itself (EcuFlash) or just go and create a log item in EvoScan with "83" and correct formula? I have all EVAP system eliminated and disabled...
I'm using 96530706 Tephramod v7 ROM at the moment.
Last edited by ZyXEL; Feb 11, 2015 at 11:34 AM.
Feb 15, 2015, 06:31 PM
#14
Also a question on MUT table- if we are referring an input as ADC_0F, which PIN on the EVOVIII is this? And if I want to log it with EvoScan- do I need to adjust something in the MUT table itself (EcuFlash) or just go and create a log item in EvoScan with "83" and correct formula? I have all EVAP system eliminated and disabled...
I'm using 96530706 Tephramod v7 ROM at the moment.
I'm using 96530706 Tephramod v7 ROM at the moment.
Here are all the ADC assignments for the USDM Evo VIII. I'm using ADC_0F for a flex fuel input. It's pin 64.
Code:
ADC poll subroutine #1 ADC CHAN MUT_REQUEST ECU PIN (USDM Evo 8) r5 RAM ADDR r6 RAM ADDR 02 10 (Coolant Temp) 83 FFFF88D4 FFFF88D6 03 3A (Air Temp) 72 FFFF88E4 0E-1 (*NOT USED*) BD (NOT AVAILABLE) -- FFFF9984 FFFF8900 04 8C (Barometer) 85 FFFF88FE 09-1 13 (O2sensor_front1) 76 FFFF88EE 0A 3C (O2sensor_rear1) 75 FFFF8408 07-1 (*NOT USED*) 3E (NOT AVAILABLE) -- FFFF88F0 08-1 (*NOT USED*) 3D (NOT AVAILABLE) -- FFFF88F4 0B 38 (MAP) 73 FFFF8416 0C 39 (Fuel Tank MDP) 61 FFFF8934 FFFF8936 0E-2 87 (Fuel Temperature) 77 FFFF8938 FFFF893A 0D 88 (Fuel Level) 46 FFFF8946 08-2 (*NOT USED*) 97 (NOT AVAILABLE) -- FFFF894A 0F 83 (Flexfuel) 64 FFFF8950 ADC poll subroutine #2 ADC CHAN MUT_REQUEST ECU PIN (USDM Evo 8) r5 RAM ADDR 01 14 (BATT_VOLTAGE) 12 (?) FFFF890E 05 17 (TPS) 84 FFFF9176 07-3 (*NOT USED*) NO_MUT (NOT AVAILABLE)-- FFFF9718 4D 96 (purpose not known) FFFF7676 FFFF7678 ADC poll subroutine #3 ADC CHAN MUT_REQUEST ECU PIN (USDM Evo 8) r5 RAM ADDR 06 30 (KNOCK Sensor) 78 FFFF8930
Jan 9, 2020, 07:21 AM
#15
Hey,
I want to use my PLX EGT analogous output signal (0-5v) to put in the ECU. Then I want to log the EGT with evoscan. I already use the rear o2 input. My car uses the evap. I’m also using the fuel temperature for AIT Temp. Which input can I use for my EGT? I‘m using an Evo 8 ECU with tephra v7 96530706
Thanks and best regards
Marcel
I want to use my PLX EGT analogous output signal (0-5v) to put in the ECU. Then I want to log the EGT with evoscan. I already use the rear o2 input. My car uses the evap. I’m also using the fuel temperature for AIT Temp. Which input can I use for my EGT? I‘m using an Evo 8 ECU with tephra v7 96530706
Thanks and best regards
Marcel
