You've just finished your hardware and wiring installation and your getting a little bit
closer to starting up that engine for the first time, but before you do that you need
to load a global file to your ECU.
The example I'm going to use today is just going to be a basic street and naturally aspirated
454 Chevrolet with a Holley intake and throttle body.
It's going to be multi-port and I wanted to do timing control so I'm going to use an MSD
83-66 small cap timing control HEI.
Let's take a look at the software and we'll show you how to load that global file as well
as making a few initial changes to the configurations in there to match my combination.
Reveling the options that were described in the base calibration information section that
I read in help files, I chose to go with an MPI48BB225HE global file because this looks
like a pretty good starting point for my application.
To load this file, I'll start by clicking file, then open global file.
In the global file directory I'm going to select base cals and click on the MPI48BB225HE
base file.
You should always read and understand any information provided in the pop-up notifications,
in this case the crank sensor and inductive delay warning pops up.
This is going to pertain to certain types of ignition control.
For now I'm just going to go ahead and close this one out.
You should see the global file name selected appear in the top left corner of your screen.
Since I don't want to corrupt my base file, I'm going to save it as a different file name
by clicking on file, and save global file as.
I can change the directory location if I want but I'm just going to save to my base calibrations
folder by changing the file name.
I think I'm just going to call this one, new 454 base and select save.
You should see the new file name in the top left corner of your screen.
Next you want to check a few parameters as they may require some changes from the base
calibration.
Click on the system icon at the top of your screen, and select engine parameters tab.
Following the step by step beginners tuning guide, make sure that all of the display settings
are going to be correct for your application.
It's important to remember to select the proper O2 sensor, whether your using a Bosch or an
NTK sensor before you plug the sensor into the main engine harness otherwise you are
going to damage that sensor.
Depending on your ECU you can run 1 or 2 senses for active fuel management.
The HP will do 1 and the dominator will do 2.
Since my plan is to run a dominator ECU I've chosen to add a second wide band sensor to
my right hand bank using a 558-401 auxiliary harness and pick up an additional 554-100
NTKO2 sensor.
You can then select how the ECU uses the information from the second wide band sensor, for now
I'm going to use average and let it average out the left and right bank.
I know need to change my injector specifications to reflect my 42 pound per hour Holley injector
set.
Since I know I'll be running a regulated fuel pressure of 58 PSI, I'll need to change my
actual system pressure setting to 58 PSI.
I also want to run my injectors into a bank to bank injector configuration so I'll change
that now.
Next I want to make sure that my ignition type is correct, by selecting the ignition
tab you can select from several common ignition types as well as set up a variety of custom
configurations.
In my case since I'm going to run an MSD 8366 computer controlled HEI, I'm going to select
GMHEI computer controlled.
Please be aware that this settings is for timing controlled HEI distributors only, and
it will not work with large cap, vacuum advance HEI's.
If you've got a large cap HEI, you need to go ahead and select coil, inductive coil only,
no timing control.
At this point I've edited the minimum amount of parameters required for base calibration
and I want to save these changes by clicking on the save tab on the top of the screen.
Now I need to send this file to the ECU, make sure that the ECU is properly wired and then
connect the USB cable to the ECU to the laptop.
The first time you connect the ECU to your PC it may take a moment for your PC to recognize
the ECU and load the drivers.
If this occurs just pause a moment and let your PC do it's thing.
The communication status will change from off line to USB link, turn the ignition to
run, make sure you don't go to crank, then click the USB link.
The software is going to go through and compare to the existing files on the ECU to the global
files you are trying to load.
If things don't match it will show fail and give you an option to either get from or send
to ECU.
Since we want to upload this new file, we're going to go ahead and click send to ECU to
upload that new global file.
We'll then confirm that the file has been uploaded to the ECU and that they now match
and pass.
This screen will close out after about 5 seconds.
Your communications status will now show online.
Congratulations your one step closer to starting your engine.
Next you'll need to preform a TPS auto-set and run through some pre-startup checks, to
find out how and a few more helpful Holley EFI tech videos go to Holley.com