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Well I can help with that. A1,A2,B1,B2 are the connections for stepper idle air control. they will only work when the optional stepper board is installed. most pins are very well marked. But let me know if you have more questions

@@wjones1972 thanks, it’s possible change for example, some VR1 or VR2 to get a 3rd ignition signial and 3rd injection out?

it doesn't I need to revisit the design. it was something I found on thingiverse and I extended it and cut the end to fit my connector.

@@wjones1972 thanks. I’m just installing firmware on the Mega and don’t know what to install for the base tune, what did you do?

@@wjones1972 thanks. I’m just installing firmware on the Mega and don’t know what to install for the base tune, what did you do?

The N02C board doesn't have a second input for o2. I do believe the firmware and tuner studio do support what your asking but the hardware doesn't without modification.

@@wjones1972 darn THANKS :)

@@wjones1972 my experience with air cooled twins, where we have cylinder head temp and exhaust gas temp, one will always run hotter then the other, sometimes we address that with more fuel in a dual carb setup, so I guess I can do the same since I will have dual injectors

You will have to have the 12 volt supply to the n02c board for sure I don't believe you have to have any outputs connected but you will have to select the settings in tunerstudio so it know what to do with the inputs before it will have any output.

@@wjones1972 I am thinking that MAYBE the leds will not actually blink if they are not actually connected to an injector or plug, hence allowing you to know that the device has come unplugged, thats just a guess, i will have to look more.

@@wjones1972 looks like i need to diagnose my board, in this test video once he hooks up the rpm the lights flash th-cam.com/video/LQ3JvdhXVMY/w-d-xo.html

I currently have them wired up like this and when I turn ign on I could hear the iacv vibrating for a bit then turning off, like its calibrating on the stock ecu it does that too I have it wired like this Speeduino board ---> IACV pins A2--->A1 A1---->A2 B2---->B2 B1---->B1

Yes I can do that. drive.google.com/file/d/1_S1Ry2qhF5BWdkATCS9BW-7YdMt727CN/view?usp=sharing

I just used my own when I wired it up. I hadn't seen the dropbear when I came up with this one I ordered a case from aliexpress that I thought I could make work but it was to small so I just used the connector. I originally just soldered the wires to the connector and that works but isn't great so than I went to pcbway and made a small board to mount the connector and the wires to so it is more robust.

@@wjones1972 thanks, im doing it my way then

I just tucked it in under the connector. I didn't provision it to hold it in place. I should revisit this with more people using it. it was just a quick and dirty design to hold it.

@@wjones1972 gotcha, i was looking for some MAGIC lol. OK, I will do something with it. thanks. I just didnt want to miss out :)

@@wjones1972 I couldn't print your box, you know how the first thing it prints is an oultline of one thread, so it should be a rectangle, I get a 7 sided weird shape, then, it prints only two sides so its a large L, one large side with the circles and one short side. Dont know why

@@wjones1972 ok its printing different now, let me let it run, i used the creality slicer this time.

Printed this time, doesn't seem to like the sli3e program, used reality instead, slice report like hundreds of errors, obviously a slice program problem

Yes that's correct

I get confused so I may have it wrong in the video I have 3 cars running speeduino and 2 with VW coil packs and one with LS My apologies for misstating the spec in the video.

Yes it was pretty easy to get done in one day on this pretty open frame. could be more challenging depending on what your working on. Thanks for watching

Thanks for the tip I have watched that video as well. They have updated the firmware since this video and the Closed + Open works great. I should do a video on that and my installation in my 74 VW Thing.

I need to finish the project and share the full build video. I can't really share the STL as they were not all my design. I purchased the bulk of the stl's from this link but it is missing a few parts that I had to design to be able to complete it. cults3d.com/en/3d-model/various/vw-beetle-aircooled-engine-1-3-fully-functional

I am not sure what you mean by electronic pedal if your talking about drive by wire speeduino doesn't support that yet.

@@wjones1972 thank you!

Appreciated your run-down of drone and goggles ... 😏

Sure it was a very quick change to one I found but I uploaded it to tinkercad for you. www.thingiverse.com/thing:5769002/files

Thank you for your help, I'm printing it now :) I've seen other cases but yours has a great sicma connector. Thank you again.

@@wjones1972 woo hoo i'm stealing it too

Thanks for watching glad it helped. I got my connectors from aliexpress They came with an case I was going to try and used but was to thin but they do have the separate hear is a link to some I just looked up. shorturl.at/ghkX4

Glad it helped. To get your step time you can turn it down until you get missed steps. So for example with my engine warm I only need about 5 to 7 steps for 1000rpm but if it is missing steps it will go up to say 50 and still be idling slowly. So if it doesn't feel like it's responding correctly it could be missing steps. and the error tends to get bigger over time. Most of the time 3 or 4 ms is fine. but you can start higher and work your way down the only downfall to a large number is a slower responding valve.

@@wjones1972 first of all, thanks very much for your almost instant response! so.. let me check if I got it. you are saying that once your engine is warm it needs 5 to 7 steps from the fully closed valve position. So, if by that time you change the step time to for example 1 ms (which is not big enough to make a move) and change "motor steps" to 50 (instead of 5-7) it won't make any difference. That means your step time is too low. Did I get it right?

@@andrespareradeniz9797 Kind of yes don't focus on the number exactly. but if its missing steps it will count up or down depending on your valve config without changing idle much. but i think you have the idea when it is trying to correct the engine speed if the steps are to short the commanded steps will change without the valve changing much. I think the main concept to keep in mind is it doesnt know where the actual valve position is it tries to know where it is by keeping track of the steps it commands so if its missing steps the valve will be in a very different position from what it expects or shows.

sure what's your question.

@@wjones1972 Soo i have Subaru Ignition Coil (4way) and i don't know if should i take jumper to 5v or to 12v or run it without. And if i have VR conditioner i only plug it in or should i connect it to 1-40 pins? What is idle stepper and PWM idle pin?

@@aleksantoniak5448 your coil will need to be a smart coil meaning it has to have a driver built in. you will provide 12 volts from key on and ground to the driver and then signal wires to the speeduino are ground trigger normally. if you are using a vr sensor you will need a conditioner installed and set the jumpers correctly it doesn't need any other wiring. stepper idle or pwn idle are different ways of adjusting the amount of air bypassing the throttle to adjust idle for example during engine warmup.

Thanks glad you liked it

Thanks I have seen the Mexican system I even have a few parts from one. But I was looking for more performance form some salvage yard parts and the ECU I assembled I modified the Webber carb I already had and the idle motor was a learning adventure in Stepper motor workings. I know there are a lot of options to make one work I make one work I just wanted to document my project. I am working on a similar conversion to a 1974 thing this weekend.

@@wjones1972 In the mexican bug ECU I think it is capable to chipping for a better performance. I think the ECU is Digifant system. A question... Is possible to pass emission inspection with the speeduino EFI? Have you try it? Thanks.

@@vwivancc I am not sure if that is possible we don't have emission testing in my area. I would hope that it would pass I am sure it is way cleaner than the stock pic3 carb that was stock but in most cases that doesn't matter it also doesn't have any kind of catalytic converter

I am using a crank trigger from THEDUPSHOP.com and a cam SYNC from CBPerformance. but you really don't need the cam SYNC for it to work well. I am running batch fire so it doesn't need the cam sync.

In Mexico the last bug generation comes with Euro III EFI. It is a first generation EFI and trigger is performed by a distribuitor with hall sensor. The FI is not sequential is simultaneus. 2 squirts by a complete otto's cycle. Regards from Mexico..

The NO2C would work well for your bike.

I am really glad it help put you at ease.

That's super cool. yea we could get together sometime I would love to see what your working on.

I think you posted another comment I got a notification but there is no new comment. TH-cam has issues with comments at times. can you try again

@@wjones1972 I had mentioned that your wife looks familiar and seems like I've seen her in town before. She reminds me of a lady that sold jewelry at tractor supply on the weekends in a booth/tent outside . Or maybe I've seen her at quiktrip. Anyway, would be cool to see the beetle and how you've got it set up in person some time.

@@drthik1 You may have seen her at Home Depot. She has been there several years now.

@@wjones1972 that's it! I knew I've seen her before

Thanks I didn't understand it at first so when i got it worked out I wanted to share. Glad you liked it. As it gets warm I will try to get some new stuff out.

@@wjones1972 I might borrow some of your ideas for a video for my viewers if you don't mind, but I will be sure to tag you if I do. Mine will be megasquirt related.

@@ddk56vw not a problem at all just let me know so I can view it to.