The MegaSquirt Project has experienced explosive growth other the years, with hundreds of new MS installations occurring every week - a phenomenal success! MegaSquirt has been successfully used in all aspects of Internal Combustion engine applications including R&D, Industry, Race, and Research. The MS project has transformed itself from a simple R&D project into a full-featured mature engine control system. To reflect this the support structure has also changed to meet the needs of MegaSquirt Users.
Moving forward, the R&D forums for MegaSquirt project are in a read-only mode - no new forum posts are accepted.
However the forums will remain available for view, they still contain a wealth of information on how MegaSquirt works, how it is installed and used. Feel free to search the forums for information, facts, and overview.While the R&D forum traffic has slowed in recent years, this is not at all a reflection of Megasquirt users, which continue to grow year after year. What has changed is that the method of MegaSquirt support today has rapidly moved to Facebook, this is where the vast majority of interaction is happening now. For those not on Facebook the msextra forums is another place for product support. Finally, for product selection assistance, all of the MegaSquirt vendors are there to help you select a system, along with all of the required pieces to make it complete.
Forum rules
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
hi guys getting no response from anyone on my problem
i can drive my car gently through the revs nicely but if i try to load it to quickly it missfires and backfires always at the same spot on the ve map ?? picture attatched
any ideas i thought it was due to running to rich bu i can increase and decrease the bins around the missfire without any
That sure sounds like a accel enrichment problem to me (or possibly a fuel supply problem or you might have reached 100% duty cycle, I suppose).
I *think* MSnS-E has a number of schmene and limiting possibilities for accel enrichment, peorhaps someone more familiar can comment on your settings if you post them.
The lines in the datalog generally mean the same thing (like rpm, MAP, etc.), but some things are code specific. I see you have an entry of 1000000000 for the TPSacc, and this is something to do with the MSnS-E code, I strongly suspect.
You also have a number of events where the pulse width drops to zero (which I suspect are the misfires you are reporting), and again I think this is code/settings specific (since the datalog reports the commanded fuel pulse widths, indicating what MegaSquirt is 'thinking' - if it was a hardware problem with the injectors/wiring, MegaSquirt report normal pulse widths). Pehaps it is something like the rev limiter or 'launch control' or ...
when i look at the datalog it doesnt really make much sense to me i understand the basics
im not sure what to do to sort the problem out the pulsewidths going to zero concern me could that be that the accel enrichments are way off then
i dont have launch control set and my rev limiter is set at 6800 to 7000
so i dont think that is the problem
james will probally come up with a good explantion when he comes online
ive been fighting with this car since march its going for its mot inspection this week so fingers crossed
