Nissan CAS CA18DET

[morrische]

Had some time left and did a Composite logger from a ca18det.

[morrische]

can you do the same thing for a nissan ca18det wheel pattern?? i dont know the rotation direction but this is a log of an mounted oem (mounted piggypack) here is the cranking log. i hope i made it right......

[morrische]

i will try it after on a car......
thanx a lot

[jsmcortina]

Just to be 100% certain - this was with the CAS rotating normally ? I don't actually care whether that is clockwise or anti-clockwise, just that it is the normal direction.

James

[jsmcortina]

That mode is already in the code and called "Nissan 16,12,8,4 leading" Nobody has tested it yet as far as I'm aware.

James

[morrische]

hmmmmm i tried it today but din'd get any results to be sure that the trigger is working properly.

does the injector/ignition test mode works with the ms3x outputs?? (the ignitions not i've read somwhere here)
does the injector/ignition test mode works with the ms3x outputs on the 1.0 release?

because the obly output in the test mode who works is the fuelpump output....... i think i have to recheck the inj and ignition wiring..................

[KenAdkison]

I am having the same problem. I'm trying to test MSX injectors used for sequential injection and there not working for me ether.
MS3 MSX v1.0.0, under TunerStudio MS v0.999.9h

[jsmcortina]

Yes it does work. Did you look at the video I posted on the manual page ?

James

[KenAdkison]

Sorry, My MSX injector outputs work, the output test mode is not firing my injectors and I don't know why.
Ken

[jsmcortina]

That is usually caused by not following the instructions to the letter.

James

[KenAdkison]

Good video James, I see that I should have reentered all values to insure they were loaded.
Ken

[jsmcortina]

Any new testing on this decoder?

James

[morrische]

No sorry but im in holiday until 31.10.2011 and i can't work on this car........
But it if will help you in can send you a "Distributor" with the optical trigger inside. I have one from a Nissan Sunny. Just give me a adress where to send..........

[morrische]

news: so i'm back from holidays. this morning i took the spare distributor ( one with 360 slots outside und 4 diffrent inside) wich i have, downloaded the latest beta version and wired the hole thing up. i took a drill to drive the distridutor made setting in ignition settings to nissan 16,12,8,4 and tried to get any rpm ............... nothing..............

2 days later: after reading a lot in other topics (special the rb25det) i loaded 280ge 1j's last msq. then i wired the 360° signal directly to pt4 on the ms3 card (instead of pin 32 ms3x card). took a drill revd the dizzy counterclockwise and ............... ms3 sees rpm

Hey guys i say amazing job...........

the only thing is that under 1300 rpm there is no stable rpm................ (with a drill)

to the settings

ms3 with 3x card (but at the moment dismounted and 360° signal with a 3.3v pullup (10kO) direct to pt4
4 slot signal with 12v pullup to tach
last pre 1.1 alpha

.............. lets see what it does on a car..........

[morrische]

After a hard weekend of work the results..........

so the trigger works fine. as long the car is just cranking rpm is stable.......

The thing is that i wasn't able to aling the ignition. I'm driving directly with the ms3x logic 5v output the "Power transistor". I have sparks but i have no clue what this "power Transistor" is or what he does.........
the car was running a few minutes after turning the trigger....

does the menu trigger wheel ofset/trigger wizard work in Nissan 16.12.8.4.mode or not?? (firmware pre1.1. alpha 16)
I will try it with another set of coils who don't need this power transistor...........

For any ideas don't feel shy................

[morrische]

news from the 16,12,8,4 front
Between my last post and this i had my 2. dizzy working at least on the bench........ i was waiting for the new alpha 18. because the fixed things in this code. I Also had the car running twice just with a confuing numbers in the Ignitionwheel section ( Fixed timing was set to -50° triggerwheelofset somthing around 80° and confirmed with the timing light was 10-20° ) but i could connect a drill to the 2nd dizzy wire this to the ms3 and i had a rpm........

Now i've updated to alpha 18 with the same setting and i have nothing................ I tried to play with the ignition capture rising/falling and also changed the flip polarity high res tach...... nothing....
So i checked composit logs.......... So i have the 360° slot on pt4 (wich i can see in the log) and also the 16,12,8,4 slot (wich i also can see)

i was thinking that couldn't be........ O,k, lets go back to alpha 16....... made my ignition setting and again ......nothing....... changed also the trigger settings nothing................ checked composit log looks all fine.............

i have absolutley no idea why it was working 1 month ago and now not anymore............ what do i miss..........
With basic trigger on falling edge a have a stable rpm. But i cannot go semi seq or full seq..........

[morrische]

I Played today with my Open logic Sniffer and the Dizzy.........
I made some screenshots of the input to the megasquirt (high Res to pt4 Jimstimx Low Res to tach Jim stim) What i figured out is i'm not sure about but it's not a 16,12,8,4 slit...............
I count just 15,11,7,3 or what do i understand the wrong way

[jsmcortina]

I had a look at the code - for OptiSpark and RB25 I've made the code allow +/-1 tooth, but I haven't yet applied that to the SR20 mode.

I'll add that in a day or so and mail you the test code.

James

[morrische]

Not one time im my hole career of car-mechanic i had support as fast as with Megasquirt................ Thanks a lot.

[morrische]

Recieved yesterday a testcode. Burned it to the MS3 wired mi 16,12,8,4 trigger wheel and tried with a drill if there is some rpm output. ("Igniton Input capture" --> Rising edge (Jumper set J1 to pin 5 and 6) and "Flip polarity on high res tach" --> inverted. The High res. signal goes to PT4 (pin 31 MS3x card) and the low res tach goes to pin 24 MS3 main plug)

So far so good. I have stable rpm from 0 untill 5486 rpm (my drill isn't faster sorry) (jumping around about 6 rpm wich is just great). I will see if i can try this code today on the car (i think i will Piggy pack it first)

More about CA18/SR20 det wheel code later this day or for sure weekends because i'm pretty busy during weekdays at the moment........(wich doesn't mean that i stop working at 10:00pm....... poor neighbours......... )