MS2/Extra 2.0 beta11 (20071003)

Post by **jsmcortina** » Wed Oct 03, 2007 2:45 pm

Fixes/Changes in this release include:

1) Fixup 2nd trigger modes - "LS1" and Nippondenso (24/2) settings weren't working.
2) Added a new 2nd trigger setting for the above - see F1 help on the trigger wheel page.
3) Test code change for Neon/420A. Looks a lot better on scope, but needs in-car testing.
4) Implemented some of Miata 99-00 patch, needs in-car verification.

The beta is here:

http://www.msextra.com/ms2extra/files/b ... 071003.zip

The other pending changes that Ken mentioned in the beta 10 announcement are still on the to-do list.

James

baneonrt · Post by **baneonrt** » Wed Oct 03, 2007 2:54 pm

I'll test the 420A stuff tonight when I get home.

Thanks!

Steve

md95 · Post by **md95** » Wed Oct 03, 2007 5:09 pm

I'll hope to test the 420a code tomorrow night as well..

UnaClocker · Post by **UnaClocker** » Wed Oct 03, 2007 6:30 pm

Re: Neon code..
Runs smooth. Right up till 4900rpm, then it hits a wall and won't rev any higher. I'm going to try messing with settings, and try again. I'll try again later on this evening, and post a log..

baneonrt · Post by **baneonrt** » Wed Oct 03, 2007 10:58 pm

Interesting. I just went for a drive. I'm using the non inverted VR sensor input.

Stumbles a bit mostly in the low to mid rpm range but not nearly as bad as before. Above 5k rpm it misses occasionally but not much. Could run it up to 7500rpm or so no problem. That's as high as I tried. I'll go take a datalog now and I'll come back and post it.

Here is my MSQ and Datalog. Had a bit of a scare. On one of the runs heard a very strange noise that turned out to be my alternator belt shredding

http://steve.baneon.org/misc/Megasquirt ... beta11.msq

http://steve.baneon.org/misc/Megasquirt ... beta11.xls

Steve

UnaClocker · Post by **UnaClocker** » Thu Oct 04, 2007 5:22 am

Sounds like it's running alot like it used to for me, for you. I posted my datalog in the Neon problem thread. I flat out hit a wall at 4900rpm and it WILL NOT rev past that. Very very weird! I didn't notice the low RPM miss I used to have, but then, I barely did much testing. I'm going to try driving to work on it this morning.. I just won't be revving very high. ;)

Jon k · Post by **Jon k** » Thu Oct 04, 2007 10:41 am

d*** that was a quick release from 10 james! Nice!

Tjabo · Post by **Tjabo** » Thu Oct 04, 2007 11:22 am

Steve,

Is that really something funky above 7k RPMs where you start having AFR spikes up into the 15s and 16s (at 138.7 seconds for example), or is that nothing? Your AFRs are perplexing me a bit with how low they stay most of the time, and then those lean spikes up high in the RPMs under boost. . .

Oh, and also it looks like it's reading 14.6:1 on overrun, so something must be out of whack with the way MLV is reading your wideband, or something?

Or am I seeing it wrong. . . .

Thad

md95 · Post by **md95** » Thu Oct 04, 2007 12:08 pm

My test results are in the 420a thread..

rb26dett · Post by **rb26dett** » Thu Oct 04, 2007 12:55 pm

Tjabo wrote:Is that really something funky above 7k RPMs where you start having AFR spikes up into the 15s and 16s (at 138.7 seconds for example), or is that nothing? Your AFRs are perplexing me a bit with how low they stay most of the time, and then those lean spikes up high in the RPMs under boost. . .

i didnt look at the log, but if hes quite rich, and his ignition is suboptimal for whatever reason, and he gets a miss, it causes unused O2 to pass the sensor and make it read lean. thats probably what it is. the richer it is, the harder to fire the plug too, and at peak torque, with high cylinder pressure its even harder.

fred.

Tjabo · Post by **Tjabo** » Thu Oct 04, 2007 1:01 pm

Ah-hah! That makes great sense, thanks!

I can learn a lot here.

Thad

baneonrt · Post by **baneonrt** » Fri Oct 05, 2007 12:05 am

Probably the fuel cut rev limit at about 7500rpm...

And I probably haven't tuned the over run fuel cut. It works fine on my MS1 Extra setup.

Steve

rb26dett · Post by **rb26dett** » Fri Oct 05, 2007 1:41 am

lol, true, i didnt even read the "over 7k" bit. that makes a lot of sense too.