For discussion of Speeduino compatible boards designed / built by other members of the forum and for guidance around making such a board
By kocene
#44477
Vauhtivaunu wrote:Also you should solder IC3 and all mosfets (Q1-Q10) in place.
I am using wasted spark mode, not sequential. So according to BOM, this is not necessary.

To be safe I uploaded the 202005 version to the board (attached the tune down below), but the problem still occurs.
pazi88 wrote:Do the injector leds work in HW test mode?
I just tested this and unfortunately, they don't. I am starting to think I fried something.
pazi88 wrote:Also does the TS so correct voltage readings?
What exactly do you mean by this? If it displays correct reading of the battery voltage? If so, I have not tested this.
Attachments
Current tune
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By kocene
#44480
kocene wrote:
Tue Jul 28, 2020 8:53 am
pazi88 wrote:Do the injector leds work in HW test mode?
I just tested this and unfortunately, they don't. I am starting to think I fried something.
Okay so I had more time to inspect this and it looks like I am not getting power to the ecu??

If I put 12V to the pin 54 on a bench setup AND at the same time switch on the injector test in TunerStudio test mode, they will switch on. This seemed weird at first because I do have spark and everything else seemed to work. So I went to the car to check... And I am truly not getting ANY power the pin 54. :? So I will have to resolve this issue on the car side and will report back!
By pazi88
#44481
Make sure that the dme relay circuit works in the speeduino. There is circuit on pcb that activates dme relay when you turn on ignition and the relay provides 12v to the pin54 of the ecu and injectors.
By kocene
#44492
Okay so I AM getting power to the pin 54 after all... I was measuring the voltage on the harness with the ecu removed and therefore the main relay circuit was not complete... Nevermind.

I decided to try to open the injectors with the HW test mode (fuel pump relay removed) and they do open. I can hear them click and also the leds turn on as they should. So maybe its software related? I am thinking about getting another Arduino board just to be sure.
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