PDA

View Full Version : MEFI 4B Tuning



martymonaro
01-03-2024, 09:02 AM
Hi, I have been searching for a while for options to tune the Mefi 4B ecu in a Malibu boat.
I contacted mefiburn and was told to send ecu to him to be tuned, when I asked about purchasing software was basically told the ecu is locked and I have no other options than to send ecu to him. I am in Australia and would prefer not to send ecu away and attempted to ask other questions like can he read ecu or does he just write over the top to which I never go an answer.
Does anyone have any more information that can help me proceed?
my questions are, does anyone have passwords to read the file from the ecu or can it be bench read to get stock file?
If not does anyone have a library of stock files and based from part numbers are they available?
I have changed camshaft and need to alter fueling and raise idle.

dave w
01-03-2024, 05:14 PM
Possibly the information in the attached .zip file will be helpful.

19673

dave w
01-03-2024, 06:18 PM
https://www.mefituning.com/mefi-tuning-tools

stuno
05-01-2024, 04:04 AM
Hi Marty, how did you end up going with this? I am in a similar boat/position (in Australia, needing to reflash MEFI 4B after engine change).