[lovosal]

Okay, this weekend I'll try it. Thank you very much again.
I am clear that the car is not going to start the first time, hehehe that would be too much good luck on the one hand and very good precision and a job well done on the other... and this being my first speeduino built from scratch... the second thing It's not going to be and I don't think it will be the first one either, hahaha
I think it will be more perseverance and tenacity mixed with a little/a lot of reading and questions in the group.
By the way, yesterday when I was testing the new IAC valve, I couldn't get it to work... I put its 12v, its amperage, a maximum of 2.5 ah in case I needed it, although I only use 0.5 ah. And I only managed to make it a single step, then it stopped. It reacted again when the polarity changed, a single click was noticeable and so on. Even putting two positives on the two coils and exciting them so that they both work... I couldn't do it. The question is, is it normal that I couldn't get them to work? Was I doing it wrong?
Thank you

[PSIG]

That operation is normal, as one polarity pulls or pushes the rotor in one direction, only to the next set of windings (one step). Then it switches coils and polarity to move it from that position to the next (one step). That's over-simplified, so search the web for "stepper motor".

[lovosal]

Okay, I'm going to find out. thank you!!! Now I'm going to adjust the pololu according to the wiki, and leave it ready to connect it and see if I can be lucky to get it to start this time... because I'm not going to miss connecting it anymore, so I think I'll do something... I am informing.
Thank you!!

[lovosal]

Hello, I have just been testing the Speeduino with the car, I had everything ready. But I made a rookie mistake... I put the drv 8825 upside down, and I burned it . Now it's time to order another one (I already did) and check the speeduino.
Once again, haste, impatience and the desire to see it work have gotten the better of me. I add some photos of the fateful event, how the DRV was installed and how it should have been to avoid breaking it.
Greetings

[lovosal]

.

[lovosal]

Hello everyone
The other day the new part arrived to replace the burned one.
I got to work and once I put everything back, I went to test it again in the car, but this time the part was in the correct position.
As always, I was very excited.... I know it's very difficult, especially when it comes to these issues, since the car works the first time, but I had to try.
Well the surprise was that in the end it didn't start .
I honestly have no idea why it wouldn't start. I don't know if it's because the drv 8825 is not properly adjusted, if there is no gas coming in, if there is no spark, if the software that I loaded on the Speeduino is not appropriate or if it does not have any loaded...
Anyway, I think I'll start with the basics, check that we have current in the spark plugs, check that we have gasoline and that it enters it Engine, see if we have it. Software loaded on speeduino (which you must have because everything worked quite well in the test bench...)
And any more suggestions?
Greetings and thank you

[jonbill]

Take a log and share it with your tune is my suggestion.
I'm sure its something simple.

[lovosal]

OK.
I'll start with what you told me.
I'll have to remember how it was done since I've been working on speeduino electronics for a long time and I haven't used the megalog viewer hd program that I bought for a long time. I guess speeduino will do some log automatically or if it's bad I'll connect it and try to start the car with speeduino connected to the computer and all the programs open (tuner and megalogviewer hd) tomorrow morning I will do it!"!! thank you very much for answering!!

[lovosal]

Hello,
I have already been with the car and did what we talked about. Here I give you the log and my file. I made two logs so I'll pass them both on to you.
I've been looking at them, but I'm really not sure what I'm seeing
Let's see if you can help me with this.
thank you

[PSIG]

Why did you post two tunes?
Which tune did you use for the logs?
Was the tune the same for each log?