05-27-2007, 05:57 PM
Join Date: Aug 2005
Location: Granbury, TX
Total Cats: 0
Easy therm trouble
Ok.. now that i finally got spark working (thanks braineack for the tips and help) i got another problems i mentioned in my other thread..
I'm trying to use easytherm to use the stock clt sensor and the gm IAT sensor for now until i get around to installing my gm clt sensor.. anyways ive been using these directions:
2) GM IAT and Mazda CLT
i) Once the laptop is connected to the ECU open EasyTherm
ii) Change the 'Code Version' (towards the bottom on the RHS of the screen) to "Custom"
iii) Change the port to your port (COM 1 or what-ever it is) on the bottom of the screen
iv) Change the 'Coolant Temp' settings to your desired settings ***(see below for the settings most people use)
v) Once you have changed the settings, click on the "Write .inc and .s19 Files" button on the bottom of the EasyTherm screen
vi) The file that you want to write to is the 'msns-extra.s19' file in the "EFI" folder in the MSnSE file that you unzipped to earlier.
vii) Then click on the "Download to Megasquirt" button on the bottom of the EasyTherm screen. This will open the file that you wrote to before, BUT it will default to the 'msns-extra.s19' file. You NEED to download the 'msns-extra.s19_mod' file. Don't do the other file!!!!
viii) Follow the instructions in EasyTherm to do the download BUT you don't] need to install the Boot Jumper.
ix) Once this has finished you will need to copy the "airdenfactor.inc", the "matfactor.inc" and the "thermfactor.inc" files from Program Files > EasyTherm into Program Files > Megasquirt > MegaTune2.25 > mtCfg
x) Then once that is all done, open MegaTune, check that the commuincations is going through the same COM port as before, and if you see the guages in MegaTune giving some readings you can now download your .msq onto the ECU and you're good to go.
with these values:
I have found these figures to give a 'low' temp reading so I changed them a little to
however on step vii when im supposed to download to megasquirt, when i go to select the correct COM port on easy therm, it only lets me select COM1-4, when i need to use COM5, and when i manually enter COM5 in the window, it says error.. any ideas?