What ADC inputs are available for an Evo 5?
What ADC inputs are available for an Evo 5?
I’m running Ceddymods and looking to see what available inputs there are for things like a wideband, map sensor etc. Ecu pins, MUT address and request ID for Evoscan would be much appreciated. The only one I know of is pin 75 on request ID 3C which I’m using for my MAP sensor.
Evo ECU Pinouts attached below for your reference.
To figure out unused ADC inputs on your ECU you must do this:
1. Disassemble the ROM and decode the ADC polling subroutines to figure out unused RAM addresses and ADC inputs, associate them with unused MUT values in the 3X range by updating the ROM MUT table, then use the processor manual to identify the ADC input pins on the CPU and back trace them on the circuit board to unused ECU socket pins.
2. Flash the MUT table updates into your ECU.
2. Get Evoscan hooked up to read the new MUT values and then test by using a small battery to apply a voltage (0-5V) to those pins.
3. If Evoscan registers the small voltage input you have identified usable ADC inputs and the pins that you need to use.
More information here:
Archived - CeddyMods for Evo5/6 Features
Evo 5/6 25570100 & 25570300 Development Thread
To figure out unused ADC inputs on your ECU you must do this:
1. Disassemble the ROM and decode the ADC polling subroutines to figure out unused RAM addresses and ADC inputs, associate them with unused MUT values in the 3X range by updating the ROM MUT table, then use the processor manual to identify the ADC input pins on the CPU and back trace them on the circuit board to unused ECU socket pins.
2. Flash the MUT table updates into your ECU.
2. Get Evoscan hooked up to read the new MUT values and then test by using a small battery to apply a voltage (0-5V) to those pins.
3. If Evoscan registers the small voltage input you have identified usable ADC inputs and the pins that you need to use.
More information here:
Archived - CeddyMods for Evo5/6 Features
Evo 5/6 25570100 & 25570300 Development Thread
Last edited by CDrinkH2O; Feb 25, 2022 at 01:22 PM. Reason: Added archived references
Thanks for the info! I''ll see what I can do to figure out how to do all of that. I'm super new to anything ECU related so I'm having to figure this stuff out one step at a time. In the mean time I'll probably just throw a switch at it and log one or the other until I can figure it out. Thanks for the extra info and pinout diagrams!
Ok I’ve got a ghetto plan to log AFR… because my wideband only has an analog output (meaning I can’t use a serial cable), and my ecu only has one available analog to digital input (which I’m using to log boost). My plan is to wire up an arduino board that will convert my 0-5v signs to a digital output which I can THEN connect to my laptop through a usb or serial port. What do you guys think?
Last edited by jetjockeyjosh; Oct 6, 2023 at 01:33 PM.
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