[Tensai]

i am trying to log the MAF Volts for a GCC (Middle East) spec Evo MR. Rom ID 53050009.

my understanding is that the MAF Volts should be between 0-5 volts?

the evoscan request address for Mode23 MAF Volts (23808f47) is logging something not correct! 0.35 v for the idle and 0.95 v max on Loads like 240!

i know that the evoscan adresses are from the MUT table and you add 23 + MUTXX to log.

can someone help me what is the correct address for :
MAF Volts? what MUT address (Volts)
Mass Air Flow? what MUT adress (g/s)

 

[Golden]

You want 23808f46 for MAF Volts.

 

[Golden]

Try 238087D8 for Airflow. Not quite sure on that one, but try it.

 

[Tensai]

You want 23808f46 for MAF Volts.

thank you for your help, but

23808f46 is not logging. Constantly 0.
23808f47 is working, but the range is not 1 - 5.

could it be a wrong equation? X/1025*5?

can you guys share your evoscan Data.xml File?

 

[Golden]

When you use the 46 one, make sure you are requesting 2 bytes. Yes that equation is correct for the 2 byte pull.

I can and do share my xml file... but I highly doubt my USDM 2010 Evo X settings will help you much.

Maybe Tephra can chime in. Or anyone else that logs the EDM models.

Did the Airflow one work?

 

[Tensai]

When you use the 46 one, make sure you are requesting 2 bytes. Yes that equation is correct for the 2 byte pull.

I can and do share my xml file... but I highly doubt my USDM 2010 Evo X settings will help you much.

Maybe Tephra can chime in. Or anyone else that logs the EDM models.

Did the Airflow one work?

Sorry for my ignorance, but what do you mean exactly by 2 bytes?
how can i request it 2 bytes?

thanks for the help

 

[razorlab]

Sorry for my ignorance, but what do you mean exactly by 2 bytes?
how can i request it 2 bytes?

thanks for the help

ResponseBytes="2"

 

[Golden]

Thanks Bryan. Response is the word I needed in there, not request.

The both mean the same thing in the computer world.

 

[razorlab]

Thanks Bryan. Response is the word I needed in there, not request.

The both mean the same thing in the computer world.

Yea I do the same thing all the time... :duh:

 

[E6-X]

lol . . . notti boyz . . . tensai when can i have a ride on yr dyno ?

response byte 2 . . . edit datalog items in evoscan

 

[Tensai]

ResponseBytes="2"

ok. thanks Brayan.

can you confirm the MUT address for logging the MAF Voltage.
do you mean that, if it change the response to 2 bytes, the values logged will change? i will try.

 

[Tensai]

lol . . . notti boyz . . . tensai when can i have a ride on yr dyno ?

response byte 2 . . . edit datalog items in evoscan

any time mate.

are you located in AD?

 

[Tensai]

i Know for a fact that the correct request for USDM EVO X (Rom 52690019) is 23808F50, but i cant figure out which MUTXX this correspond to.

at least can anybody tell me the correct MUTXX adress for MAF volts.

thanks for any help?

 

[Golden]

MAF volts = MUT 96 + 1

You could log MUT 96 and only get 1 byte of the information, but 2 bytes will get you higher resolution.

 

[evoscan]

how close is this?
LogReference="Airflow" RequestID="238087D8" Eval="x*2/100" Unit="g/s"
LogReference="MAFVolts" RequestID="23808F48" Eval="x/1024*5" Unit="volts"

 

[Golden]

For 2008 EDM, AUDM and JDM, yes.

 

[axis]

I have no Evo.
I have a simple Outlander XL, firmware 57120006 and I cannot log it with MAF voltage. I tried everything, the only hope is a request on the CAN bus at the address 2103, in the fourth byte there should be exactly the MAF voltage - but I do not know which program to do this. Can you help? Is it possible to enable mode 23 in my firmware? Maybe this is how you can write down the MAF value in volts? In grams/sec, I can write through the OBD. But I need volts. For the Tuner Helper program. Now i am use Evoscan 2.9 software. Regards!