Hi,

I just want to get some stats on what the board readers cars are using.


PCB VERSION: V3
MS CPU VERSION: MS2
Software Version: ms2e1.0.2
Crank Sense Method: Stock 2 wheel CAS
Miles/km Driven: 1000km


If you aren't at the driving stage please say so. If your car won't start say so. If you are driving but have noise problems please say so. Basically I want to know if anyone has got ms2e2.0.1 working properly to a good state where there aren't noise/triggering problems.

The only software I've ever had in a really good state of tune is ms2e1.0.2. I had an OK MS1extra install but my car had a LOT of other problems, so I will never know how good that was.


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PCB VERSION:
MS CPU VERSION:
Software Version:
Crank Sense Method:
Miles/km Driven:

 

PCB VERSION: V3
MS CPU VERSION: MS1
Software Version: 29y4
Crank Sense Method: Stock 2nd gen CAS (2nd LM1815n)
Miles/km Driven: roughly 12,000 miles

I still have a little bit of noise on the TPS that i've been playing around with, but it is still completely drivable, and i've taken it through 3 autocrosses without problem. I have the MS2 chip, but have yet to really commit to getting that in and working correctly, due to some problems with getting the correct firmware versions between the chip and my laptop.

 

PCB VERSION: ver 3.0
MS CPU VERSION: ms1
Software Version: 29y4 extra code
Crank Sence Method: missing tooth, modded cas
1000miles?
ran fine when i first got it going with a N/a map. but has lot of noise in the system.... car is down now since saturday cause im modding it to duel vr for the stock cas.

running toplessFC3sman's maps lol its a little funny on the low end but i can start and drive the car around the block or to the nearest 7-11

 

PCB VERSION: V3
MS CPU VERSION: MS1
Software Version: 29y4
Crank Sense Method: Stock 2nd gen CAS (2nd LM1815n)
Miles/km Driven: 1500 km

Well after many problems which include the swapping of: one main chip, ignition chip op amp and map sensor, I have finally got it running well. Economy is good, power is fantastic ( a little on the ragged edge: 550's all round 98 octane with 15 psi ).
Oh and no noise problems.

 

PCB VERSION: V2.2
MS CPU VERSION: MS1
Software Version: 29y4
Crank Sense Method: Stock 2nd gen CAS (2x LM1815n)
Miles/km Driven: 6000 track miles (HARD)

I had noise issues in the beginning, but then I installed a jumper on the LM1815s to raise the threshold of the signal (otherwise it is auto adjust) - the wideband heater was the culprit for the noise. This fixed a stuttering idle and crappy start, so now the car starts as well as it did stock, and idles the same.

 

Thanks to everyone that posted!

dbgeekI find it interesting you use the fixed threshold. The way I read the datasheet the adaptive mode should be better. At cranking sort of CAS RPM's I generate at least 5v peak to peak sensor output which is much larger than the highest selectable threshold. I would have thought using the car in that mode would probably reduce the SNR out from the LM1815N because the adaptive mode should almost always be charged somewhere between 5v and 20v I would be thinking. I had a tightly gapped stock gen2 cas on a decent tektronix scope earlier this year.

Topless, I think you should give the MS2 a go just because of the extra fueling resolution!

 

Jobro - I would have thought the same had I not experienced the difference. The car would start and idle well enough without the wideband, but as soon as I plugged in the sensor (LC-1), the starting behavior went from 90% to 5% success rate. It is now 99% (occasionally it tries and dies, but restarts immediately on the next crank).

 

yea, i plan on going to MS2 in a month or so, after auto-x season wraps up, not that i'm competitive, but i have a pretty good tune down in MS1 and have just wanted to enjoy driving the car for a bit without bringing my laptop out every other time. I'm going to have to spend some time re-reading all of the discussions on how to get the 2nd VR to trigger properly again soon.

 

I'm going to be working on adding the noise-filter capability to 2nd trigger in 2.1.0 so I'll have a test-code for those who want to try it pretty soon.

I'll be testing it on my own rx7 before handing it out in any case.

Also, I've had 1.0.2, 2.0.1, and ms1 working no problem on this car, probably about 500 miles on ms1, 1000 on 1.0.2, and 200 on 2.0.1.

This is in addition to countless hours installing and tuning other peoples' cars, and of course developing the code on the bench and in the car (start, idle, drive around the block, tweak some code, try again).

In any case, I know it's a bit difficult to get 2.0.1 to run well right now, as I fought with circuit changes to make it work myself for a long time.

So I will be adding the filter probably this weekend, although I don't know if I'll have time to test it soon.

Ken

 

PCB VERSION: V3
MS CPU VERSION: MS1
Software Version: 029w
Crank Sense Method: missing tooth, modded CAS
Miles/km Driven: 22,000km

Noise issue above 3000RPM. It has always been there but has progressively been getting worse. I plan on cleaning up the wireing over the winter and possibly adjusting the pot's a little to clean it up. I will also be changing injectors and possibly upgrading to 029y4 while i'm at it.

 

I've got a list for a few cars:
Me:
PCB VERSION: V3.0
MS CPU VERSION: MS1
Software Version: 029y4
Crank Sense Method: stock CAS now (dual LM w/about 5k+, but was using modified CAS beforehand for about 10k+)
Miles/km Driven: approximately 15k+

For the last several months, I have been having problems with battery voltage spikes and steady detonation in my datalogs during WOT in 2nd gear above 7k, 3rd gear above 6k and 4th gear above 5k. I am attributing this to my alternator which may be causng the voltage spikes, but am still unsure. I also have a steady consistent problem with a surge during decel after exactly 2 seconds. This should obviously be shown on my screen as well as in my datalogs, but I have my overrun fuel cut seconds set at 0, and everytime I let off the throttle, my screen and datalogs show 0 ms of fuel being injected and the surge isn't seen anywhere.......it's kind of a phantom problem I have and seems to have started after the detonation problem showed up. (Using an s5 N/A alternator)

My brother's car:
PCB VERSION: V3.0
MS CPU VERSION: Currently MS1, but have previously tried MS2
Software Version: Currently 029y4, but previously 1.0.2 and 2.0.1
Crank Sense Method: Stock CAS (dual LM)
Miles/km Driven: 650 miles

Initially, it had the MS2 chip in it, but it never started with 2.0.1, but I got it to start, idle and rev on 1.0.2, but had severe noise problems and table corruption. Therefore, I installed the MS1 chip and is successful as usual. However, I am seeing massive random voltage spikes in my datalogs that range anywhere 6 volts, up to about 18 volts. These are much more random than the ones I see in my car and can occur anywhere in the rpm range under any throttle position. The ones in my car are consistent at higher rpm's. (Using an s5 N/A alternator)

Jose (Jsnow82): (I installed his last December)
PCB VERSION: V3.0
MS CPU VERSION: MS1
Software Version: 029y4
Crank Sense Method: modified CAS
Miles/km Driven: 4k (?)

He seems to have no problems whatsoever and he's running 16 - 19 psi using a BNR stage 4 and is making roughly 415 - 430 rwhp on pump gas. He has no voltage spikes at all, and uses an FD alternator.

Jason (JasonDowney): I installed his last year at some point
PCB VERSION: V3.0
MS CPU VERSION: MS1
Software Version: 029y4
Crank Sense Method: modified CAS
Miles/km Driven: almost 1k (?)

He doesn't drive his car very often, but from what I know, he has no hardware or software problems at all as seems to be the norm for all MS1 applications I have dealt with thus far.


I would REALLY like to be able to upgrade to MS2 2.0.1 for my RX7 as well as my brother's and Jose's (Jsnow82). This is for many reasons that include the ability to install individual coils (LS2 or Yukon coils), to be able to run negative split, much higher resolution, wall wetting accel., and lots of other features. However, since I haven't had success with MS2, I decided to be patient and wait for a "writeup" or for someone who is running it successfully without any problems with noise, corruption, etc. It was getting too frustrating dealing with the MS2 and getting it to work reliably. After having to burn the firmware 20+ times due to corruption, I gave up---(re-opening the file didn't work, but rather stayed corrupted in a different matter somehow).

 

MS CPU VERSION: ms1
Software Version: 29y4 extra code
Crank Sense Method: missing tooth, modded cas
about 3k miles

SP 13b S4 60-1 turbo running 550cc and 1600cc at only 11psi. Ign. Noise from CAS signal using plug and play setup, due to isolation issues with stock shielded setup. Slight stumble between staging points when cold due to primary injector size vs. secondary. Further table tuning needed. Daily driven, decent milage, very reliable.

 

My option isn't on there... MS1 fuel only.

I don't know how many KMs... at least 5k on the current engine, and probably 5k total on the previous two engines.

 

PCB VERSION: V3
MS CPU VERSION: MS1
Software Version: ms1e 029w
Crank Sense Method: Stock 2 wheel CAS
Miles/km Driven: 1000 Miles

Track-only race car. No noise problems. Plan to go to MS2E 2.x this winter.

 

PCB VERSION: 3.0, second lm1815 on proto area
MS CPU VERSION: MSII, blue board
Software Version: MS2/E 1.0.2
Crank Sense Method: Stock CAS unmodded
Miles/km Driven: A little over 4000 miles thus far

I tried to make ms2/e 2.0 work on my setup and had continuous second trigger issues. I gave up on trying to make it work as 1.0.2 is rock solid.

I do, however, have two other cars (351c mustang, BMW 2002) running just fine on 2.0.1 with a 36-1 wheel.