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Old 08-01-2012, 01:25 PM   #1
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Angry Okay.. WTF did I do... DiyPNP stopped communicating...

So I just finished building my DIYPNP... Using a 12volt 1amp power supply I had, i powered it up on the bench yesterday. Was able to get firmware/basemap loaded...

This morning, decided to go through some settings and learn TunerStudio.. It was working fine... Now all of a sudden, it stopped working. I was using my Dell Win7x64 Laptop with a TrendNet TU-S9 USB/Serial adapter. Portcheck opens the port, but gets no response to any commands...

Then I busted out old faithful... My old tuning laptop.. XP with a Belkin F5U409 USB/Serial adapter. I've used this for eManage, FC-Edit, and many others, so i know the computer/adapter combination works. Installed TunerStudio on that laptop... Same thing... No response.

My 12 volt power adapter has power and is giving the 12 volts to the MS...

What am I missing? The only things I even touched in TS was checking the ignition settings, and disabling boost control because it was giving me a conflict with Boost Control Pins error.
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Old 08-01-2012, 02:47 PM   #2
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did you leave the boot jumper installed or something?
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Old 08-01-2012, 03:10 PM   #3
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Did you ever figure it out?
Watching and learning... thanks
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Old 08-01-2012, 03:37 PM   #4
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Quote:
Originally Posted by Braineack View Post
did you leave the boot jumper installed or something?
nope... No jumpers installed..

Quote:
Originally Posted by wongmic75 View Post
Did you ever figure it out?
Watching and learning... thanks
Nope. Its only been like 5 hours... lol

EDIT: Tried disabling FIFO buffers... No luck.
EDIT2: Tried MiniTerm in TunerStudio. Open the port at 115200 baud. Type Q and get nothing back. Type S and get nothing back. I see it sending through the LED's on the TX/RX on my USB/Serial Adapter. Nothing returns..
Is there some sort of hardware test I can do / something I can meter? There are no LED's or anything on the DIYPnP...

Last edited by nperkins; 08-01-2012 at 04:02 PM.
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Old 08-01-2012, 04:11 PM   #5
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I was able to reflash the firmware and now its working again... I tried downloading the basemap, and I'm getting:

1 Warnings:
Warning: MSQ Units Mismatch for EAElagRPMmax! rpm found in current configuration, rpms found in MSQ, values were not converted to new units.

Which my reading tells me can be considered normal due to version variations.


EDIT: So now... I used the DIYPnP setups for ignition setup as noted here:
http://www.diyautotune.com/diypnp/ap...3-16b6-mt.html

I disabled Boost Control as well. I just installed Toyota COPs (Braineack you probably saw my thread on CR)... Anything else I'm missing other than adding the 1k resistor like you mentioned... You said 2L on CR, but I think thats WOT signal for TPS.. .

Woops... Reread... Saw you said 2I.. Not 2L... still a little unsure though... I saw here where it looks like you say to jumper at the diag connector...
https://www.miataturbo.net/megasquir...already-60744/

Last edited by nperkins; 08-01-2012 at 04:32 PM.
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Old 08-01-2012, 04:46 PM   #6
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you can do that too, but putting the resistor in your DIYPNP while it's out is an easy solution.

see if the jumper in the diagnostics box works, then you know.


But yes, it's 2I. the stock ECU used to provide a pull-up for it.

Horrible Simpleton Electronics Speak: The coils go to ground on each spark event, there needs to be some positve voltage on the wire so the driver on the dash tach can see each time there's an event and make the tach move.
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Old 08-01-2012, 10:32 PM   #7
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Quote:
Originally Posted by Braineack View Post
you can do that too, but putting the resistor in your DIYPNP while it's out is an easy solution.

see if the jumper in the diagnostics box works, then you know.


But yes, it's 2I. the stock ECU used to provide a pull-up for it.

Horrible Simpleton Electronics Speak: The coils go to ground on each spark event, there needs to be some positve voltage on the wire so the driver on the dash tach can see each time there's an event and make the tach move.
Makes sense... I'll do that...

Now... Crosspost from CR...

Reflashed the firmware and now the MS is working on the bench...

I still have my misfire... It is between 3500-4000 RPMs under very light load (15% throttle or less), and on decel coming down into the same RPM range. I can tell on decel because I get a quick flash of the CEL...

I have a 50v 10,000uF capacitor on 12v and gnd... I also ran a ground from each coil to the head, as well as a ground where the connection comes together closer to the ignitor plug..




I also closed my plug gap from .043 to .033 as recommended by braineack in a thread I found on teh google machine...

And on another note... There is an ignition condensor.. Is it needed with COP?
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Okay.. WTF did I do... DiyPNP stopped communicating...-img_20120801_211953.jpg   Okay.. WTF did I do... DiyPNP stopped communicating...-img_20120801_211959.jpg  
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Old 08-01-2012, 11:52 PM   #8
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the condensor is like the cap.

post tune. post datalog of misfire.
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Old 08-02-2012, 12:00 AM   #9
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No tune... MS is still sitting on my kitchen table.. I'm still on Stock ECU... I want to find the misfire before installing the MS and adding to my confusion... One mod at a time lol
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Old 08-02-2012, 09:48 AM   #10
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Some more research on the google machine shows that I may need to close my gap even more than .033... Don't know that I buy that since its even on decel sometimes... I could see if it was under hard load and blowing out... I'm wondering if its something with the open/closed loop changeover causing it..
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Old 08-02-2012, 02:40 PM   #11
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Quote:
Originally Posted by nperkins View Post
Some more research on the google machine shows that I may need to close my gap even more than .033... Don't know that I buy that since its even on decel sometimes... I could see if it was under hard load and blowing out... I'm wondering if its something with the open/closed loop changeover causing it..
When you say on decel do you mean engine-braking back down through 3500-4000? Or revving to say 5k, and pushing the clutch in?
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Old 08-02-2012, 02:49 PM   #12
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engine braking... I don't notice an actual hiccup because its decel, but i see the CEL flash really quick just like it does when it stutters on accel...
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