TunerPro User Forum

cbernhardt

Are you trying to change the item in TunerPro or ScannerPro? ScannerPro only reads and displays data from the MEFI controller. TunerPro works only with the BIN file, it does not communicate directly with the MEFI controller. Changing the item in TunerPro just changes the value in the BIN file, assum...

cbernhardt

In the "Items List" look for the code that you want to change. Double click on the item and you can set or clear the value.

Charles

cbernhardt

If this relates to your MEFI equipped boat engine, there is not much related to the injectors that you can check. There are some error codes that will indicate a short or open in the injector circuits.

Charles

cbernhardt

You can create a histogram showing the average GPH or MPG over the time that the engine parameters are being scanned, but not sure what use it would be.

Charles

cbernhardt

pbusanga wrote:Thanks Charles...quick question when you link new item cant you watch it on the dash along side the original item to check is same, then apply formula ??? same as you would with copying the native one and renaming it.

Yes you can.

Charles

cbernhardt

As far as I know there is no way to accumulate the total gallons used.

Charles

cbernhardt

You would have to know (or estimate) your boat's speed at a certain RPM. In the item list equation you would link both the RPM and the GPH. The RPM would have to have a factor that would convert it to the correct MPH. Then just divide the converted RPM (converted to MPH) by GPH. In my case the equat...

cbernhardt

is there anyway to calculate GPH (gallons per hour) in real time and calculate total gallons used as a cumulative figure, in total and per trip. Would like to be able to use this software (i know is not intended for this) to calculate how many gallons i have used on my boat while underway. bear in ...

cbernhardt

not sure how i would find out what voltage corresponds to what pressure ? i was hoping there was some kind of standard for MEFI4.adx oil pressure conversion. i created a new parameter (OIL PRESSURE PSI) and linked it to the original oil / CAT and then applied formula. Would it be better to use OIL ...

cbernhardt

a formula which i see alot of for GM engines is psi= v*32 - 16 for a 0 - 5v sender.... I would think you would need to know the voltage that corresponds to an actual oil pressure reading in order to calculate a conversion factor. On your engine does 1v=20psi, 2v=40 psi, 3v=60psi ? The MEFI4.adx con...

cbernhardt

I think the word you are looking for is "acronyms".
What are some of the acronyms you are looking to define?
What definition files are you using with TunerPro?

Charles

cbernhardt

In order to prevent killing yourself, why don't you look into routing your wide band output into your ECU? Does your wideband have an auxiliary output? Does your ECU have an unused channel that accepts a voltage input? If so you should be able to wire the wideband output into the ECU and then create...

cbernhardt

Post removed

cbernhardt

Not sure about displaying bitmasks in the newer versions of Tunerpro, but I am using ver. 5.0574 of Scannerpro and all you have to do is create "Status" type gauge on the dashboard and then crate a "Bitmask" value to assign to the gauge. Of course you will have to know the packet...

cbernhardt

When the tune is written to or read from the controller only a fixed number of bytes are written/read. Theoretically you could define a MAP/RPM/BPW table that would be larger than the entire memory block that is written, so that is one reason I believe it will not work. Another reason is that there ...

cbernhardt

My assumption that you cannot modify the MAP/RPM points is based on the fact that there is no separate value saved for these points, only the MAP values; therefore the controller cannot know that these have been changed. Just because you can define a table with more rows and columns does not mean th...

cbernhardt

Charles, Would I be able to redefine the RPM/MAP points to different values but keep the table the same size? As far as I know there is no way to change the RPM or MAP points. Could you upgrade to the MEFI4? The MAP points are from 20 to 100 in 10 Kpa increments and the RPM points are from 200 to 9...

cbernhardt

Has anyone done any work developing public domain MEFI definitions? Obviously I could buy MEFI stream definitions but where is the fun in that? I have no problem doing some of the work myself but if anyone has something started that they would be willing to share I would greatly appreciate it. Seve...

cbernhardt

Trash wrote:Charles,

Thanks, that all makes sense. What happens when the motor goes outside the table in regards to RPM or low MAP? Does it interpolate in a linear manner?

I don't really know. All my data logging has been with the MEFI4a and the engine has never been outside the MAP or RPM limits.

Charles

cbernhardt

Charles, Thanks for the answer, that's the best response I've gotten yet!!! As a follow on, since I don't believe my controller uses the Voltage Compensation vs. Battery Voltage table, would I then be able to increase the MAP/RPM table withing the 140 byte limit , allow it to write to that memory l...

cbernhardt

Currently tuning a marine motor with MEFI 1. If I modify the RPM/MAP/BPW table by adding a additional MAP column and RPM rows will I be able to upload it to the MEFI 1 ECM? Will the MEFI 1 ECM recognize the larger table and work correctly? Would it cause any damage to the MEFI 1 controller by attem...

cbernhardt

I have a friend fighting with a boat. I did not realize many of them run a pretty basic open loop GM 8192 baud computer by GM. I have not tried to connect to it yet but pretty sure I will have issues without the proper def files. Just curious if anyone has played with these? I would guess this is a...

cbernhardt

Couple of question's. Trying to tune LS1-LS2 & Truck Vortec 4.8, 5.3, 6.0 Is it possible to integrate Innovative Wideband O2 into scanner-pro? I have absolutely no luck with scanner pro, half way thru a data log session scanner-pro always freeze's and I have to re-start my laptop.....(i'm using...

cbernhardt

Thanks for the reply. I was able to successfully connect the VSS to my Ram Jet controller so I now have a vehicle speed reading. The controller already has a readout for gallons per hour, so all I had to do was create an MPG item that consisted of the vehicle speed divided by the GPH.

Charles

cbernhardt

Cobalt:

Did you get my last PM?
I need your email address.

Charles

cbernhardt

Hi, i´m really new to this.. living in sweden. I have a Cobalt 293 with 2 350 mag mpi 2000 engines (using MEFI3). I wan´t to read out some data from the ECM as one of the engines runs very rich on idle.. could be a faulty injector. I have built a cable based on the MAX232 solution published on akmc...

cbernhardt

I am using ScannerPro 5.0581 with an MEFI4a controller (GM Ram Jet 350 crate engine). I am able to read instantaneous fuel consumption in gallons per hour directly from the controller. There is also provision for reading the vehicle speed in miles per hour, but I do not yet have a vehicle speed sens...

cbernhardt

Why am I having a difficult time finding a MEFI1 Definition file. I have the RamJet tune file already but I need the XDF file for definitions. MEFIBurn wants $600 to have access for this file. That's total BS. Does anyone here have the XDF definition file for one the worlds most common ECM's made d...

cbernhardt

Try MEFIBurn.com. They sell scanning/tuning MEFI definition files for use with TunerPro and ScannerPro. They also sell software that allows you to upload the modified tune into your MEFI ECU.

Charles

cbernhardt

Thought about that.... Still seems to be easier to run the WBO2 in through an unused input and patch the bin, along with modifying the ads/adx. This is for the GM ECM anyway, since that's what I'm most familar with. Besides TP RT/Scanner Pro have many more capabilities than LW2/3, so it would make ...

cbernhardt

Files sent.

Thanks,
Charles

cbernhardt

So, if I buy the software from BOB, I would need the Merc password as well or not? Thanks, Jezz More than likely the Merc is password protected. If you do not have the password you will have to start with a new tune and overwrite the one that is in there now. Ask Bob, they work on a lot of boats, s...

cbernhardt

Hi Charles, I bought my cable from Bob as well. I have a USB cable and bob told me that I will need a new cable if I but the Burn package, but I found it a bit too expensive - another $400 or so for the burn packaage upgrade. A bit too much for my pcoket. Regards Jezzb Well, I can't help you on the...

cbernhardt

Hi Charles, from where did you buy the Mefi Burn software. I want to get a copy. Thanks, Jezzb The MefiBurn software is from OBD Diagnostics, talk to Bob. Was the cable you bought from him a USB or serial? My reason for asking is that you will need their USB cable for use with the MefiBurn software...

cbernhardt

Yes - the USB cable runs over the distributor cap ... Good point .. maybe it is causing a problem. Will try to keep it away from the area. You are using Scannerpro as well? Regards Jezzb I initially had my data cable running over a plug wire and would get some data glitches. I am using TunerPro, Sc...

cbernhardt

Hi Charles, I bought the MEFIScan package and I was told by Bob at ODB (from where I bought that software & cable) that it works win ScannerPro. ScannerPro is giving me errors when I connect on intermittant basis so I thought of trying Tunerpro. Did you by any chance try Diacom's solution or kn...

cbernhardt

Hello Charles and thank you for your reply. Yes, my MERCRUISER has a MEFI 3 Controller. I did by a wire and Mefiscan software but the file I git with the CD only works with Scanner Pro. Kind regards Jezzb I have the Mefiscan software package for use on a GM Ram Jet 350 engine. The early Ram Jet eng...

cbernhardt

jezzb wrote:Hello,
I am looking for the XDF file for my Mercruiser GM 7.4 MPI XDF File please.
Any help is much appreciated.
All the best
Jezz

Doe your Mercruiser use an MEFI (Marine Electronic Fuel Injection) controller?
If so, do you know if it is MEFI3, MEFI4a, MEFI4b???

Charles

cbernhardt

I am having a problem with the “Copy From Compare” function in TunerPro. As a test to see if I was doing something wrong, I copied an existing BIN file (file “A”) and named it file “B”. I opened file “A” and set file “B” as the compare file. When I edit a table and hit the “Compare” button, I see th...

cbernhardt

It won't really matter which input you choose, because you will likely have to adjust the values and multipliers anyway. Well, I was able to connect the LM-1 to my controller and view/log the wide band data. In the process, I came across another question: Is there any relationship between the Range...

cbernhardt

Each value has 256 "steps" or "counts", so the ECM changes the voltage to these "steps/counts", to be transmittd on the datalink. SO the multiplier of .1, is moving the decimal over to the left one place to show a value of "13.5" on the gauge display, instead...

cbernhardt

The multipliers will differ to show the correct "world" values, similar to that of a regular guage. Well, that is what I would think also, but is that what the MULTIPLIER actually does? For example, if you look at the Ignition Voltage definition: <ADXVALUE id="76" idhash="0...

cbernhardt

I am using ScannerPro on a GM Ram Jet 350 engine. The injection system on this engine is an MEFI4a and uses a narrow band O2 sensor. I also have an LM-1 wide band installed but not connected to the MEFI4a controller. I would like to use my existing ADX file to log the wide band output along with all...

cbernhardt

I tried creating a new histogram on another computer running XT and have the same problem. My sequence of events is: 1. Under “File” select “New Definition” 2. Click “Histograms” then “Add New Item” 3. Enter Title and Unique ID 4. Under the Row (Y) Object, pick the item selection button. 5. The ADX ...

cbernhardt

ScannerPro Version 0.05.0574.00. I am trying to get a rough idea of how my fuel consumption changes with changes in tuning by using a histogram showing RPM vs MAP vs GPH, using a “Running Average” view. I can modify the example Fuel Trim histogram supplied with the program and change Injector Pulse ...

TunerPro User Forum

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