It seems to me that

MUT 12 is wrong it does not say about EGR temperature but
it is Air Intake Temperature which is initialized with 81 degrees Celsius and then
if sensor reading is within limits OK switches to Scaled Intake Air Temperature.

MUT_20 - Target Engine RPM

MUT_39 - Fuel Pressure

MUT_3E - Front 02 Sensor 2 Voltage

MUT_88 - Fuel Level

MUT_87 - Fuel Temperature

MUT_97 - Rear O2 Sensor 2 Voltage

 

bump^

 

Do you know what the ranges are on the fuel pressure and temperature? I'm guessing the pressure is something small just to verify if emissions is working, etc?

 

Not yet, I will try to investigate it further

 

Fuel temperature is fuel tank temperature. This is the ADC input that I hijacked for my MAT patch.

Fuel pressure is fuel tank pressure. It can accept 0-5 V. I was thinking of hijacking this one as well, but I found that the Evap system operation and self-testing code is heavily reliant on it.

acamus, MUT 13 is also front O2 voltage, and MUT 3C is also rear O2 voltage. MUT 12 is what I call an "intermediate" value for coolant temp because its not the main value. The main scaled value is at MUT 10.

 

I guess it is variable that has something to do with closed loop

 

there are 2 banks and 4 O2 sensors possible with the car B1S1,B1S2,B2S1,B2S2

 

One more thing, I found out that you exchanged IAT and CTS in your disassembly

 

They are not exchanged. :-) I've been logging the scaled values for many months. Please recheck your work.

 

Ok, I migth be wrong but explain how CTS can have effect on Effective Load that is used in main maps

 

I'd have to look at the section, but I can say in general that CTS plays a role in a huge number of calculations.

MUT10 = CTS
MUT11 = IATS

 

I agree on that

 

Sorry to give this a huge bump but it's already got some good info for what I want so I'll just post here.

I'm looking for a free pin to log my AEM Boost gauge. What I seem to be understanding is that pin 64 can accept a 0-5v signal and is read by the ECU. I don't believe there is a pin/wire in the connector in this location, but if I were to modify the connector and add a pin in that location and wire the gauge to the pin, should I be able to read the voltage and log with it?

This also shows that it reads the pin:

http://www.evoscan.com/manuals/Evo%2...U%20pinout.pdf