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 Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
Hi guys........I just got a hold of a timing gun to set up my trigger offset. Looks like I had to put in 21 in the little box so the timing gun and the big box both show a 10degree at idle. Before this it was idleing at 21 on the timing gun when I thought it was at 10.
My question right now is.........as I blip the throttle I can't see any advance showing up on the pulley. I have a white mark at TDC,10 and 20 and this doesn't move while blipping.You can rev it up to 2000+ and it's really steady! For some reason though it's not rock solid/super steady at idle and does a little fluctuating/hunting. Could be fuel tuning though.
Shouldn't I be able to see this move on the pulley as the RPM increases?
My VW Bus and MS pix CLICK
Running on MS since July 22/05,
MSnSExtra July/06 EDIS Aug/06,
now MS-II July 1/10.
Yes, it should definitely move, if your spark table isn't full of 10's of course!
Do you get a tach signal (does the rpm should in the tuning software?)? If not then you need to check the continuity from:
- DB37 pin #24 to the EDIS PIP pin (#1),
- DB37 pin #24 to TACHSELECT jumper,
- TACHSELECT jumper to OPTOIN jumper (i.e. check this jumper at both ends),
- OPTOOUT to MS-II header pin #14 (where it sticks through the MS-II card).
These should all be less than 1 Ohm.
If you are showing rpms, then the problem could be because the EDIS setting isn't selected ('Coil Charging Scheme' should be 'EDIS', ), or because the SAW output signal itself is absent or weak. If the setting is correct then assuming this is a V3 board I would check the continuity from:
- SAW pin (#3) on the EDIS module to MS-II's DB37 pin #36 (check from each end of the wiring),
- DB37 pin #36 to the IGN jumper,
- the IGN jumper to JS10 jumper (i.e. check this jumper at both ends),
- JS10 to MS-II header pin (where it sticks through the MS-II card).
All of these should be less than 1 Ohm.
Let us know what you find.
Lance.
"Never wrestle with pigs. You both get dirty and the pig likes it.” - George Bernard Shaw
Do you get a tach signal (does the rpm should in the tuning software?)? .
It's a V2.2 board. It does show a RPM and advance in the tuning software. This is why I never really checked to see if it was mechanically working at the motor.
I'll check back tonight when I get home and report back.
My VW Bus and MS pix CLICK
Running on MS since July 22/05,
MSnSExtra July/06 EDIS Aug/06,
now MS-II July 1/10.
Yes, it should definitely move, if your spark table isn't full of 10's of course!
If you are showing rpms, then the problem could be because the EDIS setting isn't selected ('Coil Charging Scheme' should be 'EDIS', ), or because the SAW output signal itself is absent or weak. If the setting is correct then assuming this is a V3 board I would check the continuity from:
Let us know what you find.
Lance.
Looks like it was set to 'standard coil charge' I looked back at lots of old MSQ's that I had and they're all the same. Can it even run like this properly?
My VW Bus and MS pix CLICK
Running on MS since July 22/05,
MSnSExtra July/06 EDIS Aug/06,
now MS-II July 1/10.
As Jamie from Mythbusters would say, "there's your problem!"
I think if you use the standard coil charge on EDIS, it is probably mostly ignored (because it's probably not in a 'sensible' range for the EDIS module). I think that's why your engine ran - it was on limp mode all the time.
It should run *much* better now!
Lance.
"Never wrestle with pigs. You both get dirty and the pig likes it.” - George Bernard Shaw
I was even able to put the 'trigger offset' back to read '0'. I just probably never thought to check that setting after my swap from MS-I to MS-II or something.
Thanks Lance.
My VW Bus and MS pix CLICK
Running on MS since July 22/05,
MSnSExtra July/06 EDIS Aug/06,
now MS-II July 1/10.
Question re advance on pulley not showing
I looked back at lots of old MSQ's that I had and they're all the same. Can it even run like this properly?
