Ms-II, Fuel While Cranking? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 12-20-2007, 05:48 PM   #1
Elite Member
Thread Starter
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default Ms-II, Fuel While Cranking?

Does the MS-II extra fuel while cranking?
AbeFM is offline   Reply With Quote
Old 12-20-2007, 10:45 PM   #2
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

The MSI Extra does. The amount of fuel is determined by the cranking PWs. No idea on MSII.
cjernigan is offline   Reply With Quote
Old 12-20-2007, 10:49 PM   #3
Elite Member
Thread Starter
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

Any idea where that setting is in the software? There seems to be a temperature dependant setting, and while it fuels WHILE I'm setting that, I wonder if there's something else I'm missing.
AbeFM is offline   Reply With Quote
Old 12-20-2007, 10:52 PM   #4
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

This is just a random table example. We adjust our cranking fuel by going to Cranking/Warmup, Cranking Settings.

This
cjernigan is offline   Reply With Quote
Old 12-20-2007, 11:54 PM   #5
Elite Member
Thread Starter
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

Quote:
Originally Posted by cjernigan View Post
This is just a random table example. We adjust our cranking fuel by going to Cranking/Warmup, Cranking Settings.
This

Well, thanks - at least I don't feel like a tool. Mine has the same chart (with a nice graph!) but none of the other settings. There's a crank pulsewidth table, but it seems to be being ignored. Guess I'll keep digging. Thanks though!
AbeFM is offline   Reply With Quote
Old 12-20-2007, 11:58 PM   #6
Elite Member
Thread Starter
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

Actually, ok, priming is in MS. Cranking is in %. And most of those are in the hundreds, they all are. Like, 180% to 430% - I imagine it just means that much richer than the running pulses. No idea. I've set them all to numbers in the teens, I guess I'll get out the stim and try it
AbeFM is offline   Reply With Quote
Old 12-21-2007, 12:19 AM   #7
Elite Member
Thread Starter
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

Er, thanks for all the help. I think I've got it. This is the second problem that just... "went away", litterally all on its own.

I'd powered it on and off, loaded and unloaded settings, etc. But now nothing I do can break it. Yesterday nothing I did could fix it. Maybe it takes longer to kill the power for a full "reboot" than I thought?

Is there a reboot/memory clear button I can jump, or way to drain power out of the caps?
AbeFM is offline   Reply With Quote
Old 12-21-2007, 01:38 AM   #8
Junior Member
iTrader: (1)
 
Join Date: Apr 2006
Location: Kirkland, WA
Posts: 239
Total Cats: 0
Default

I was reading the MS-II Extra upgrade manual, and I think it said something about how cranking pulsewidths are a percentage of REQ_FUEL, and that it defaults to something that's mathematically in the ballpark for like, every motor out there, and that it's better not to mess with it until after the motor is running.

-Mike
grippgoat is offline   Reply With Quote
Old 12-21-2007, 01:57 AM   #9
Elite Member
Thread Starter
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

Thanks, yeah - I let it all go back to what it was after trying my little change.

Now, the issue is weird: I hooked up the ignition outputs, and the lights get really dim when there's huge advance.

For some reason, my JimStim is taking my up to something silly like 16,000 RPM - so I assume I'm reading the crank wrong. But the LEDs for ignition get dimmer and dimmer, then go out. But then: They come back on, bright as ever, much higher in the RPMS. No idea why, none at all.

I want to figure it out!!
AbeFM is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
Need help - Stock Balancer and Fastforward overlay pulleys Frank_and_Beans Supercharger Discussion 13 09-12-2016 09:17 PM
Walbro 255lph Fuel Pump $50 lsc224 Miata parts for sale/trade 2 10-01-2015 10:17 AM
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-30-2015 12:04 AM
Got bad Crank Angle Sensor and Random Misfire codes, but runs fine. Greasyman General Miata Chat 2 09-28-2015 11:44 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:44 AM.