- Mon Feb 01, 2021 10:12 am
So apparently I'm already in the right section.
We use Speeduino which I made using Github files by ordering Pcb from ebay and components from Mouser and Arduino from Aliexpress it seems to me.
Version V0.4.3 with normally the latest firmware and DSC Dual Signal Conditioner, no map sensor on the Pcb, we use the engine one.
Injectors paired 1/4 on injector 1 and 2/3 on injector 2, Cops paired 1/4 on ignition 1 and 2/3 on ignition 2 via a Bosch 211 module.
First problem, having misread the manual I configured the trigger angle to 114 ° Btdc, but strangely the engine was running very well like that, before the boost ... As soon as the turbo starts to blow the engine starts to run terribly wrong.
We changed the fuel pump, injectors, fuel filter, check for leaks, sensors.
During a tuning session with autotune, great tools by the way, I tried to increase the ignition advance in stages to see what happened, the more I increased the values the better the engine was working. But I think 60 ° is not a consistent value especially for a turbo engine.
So I saw by rereading the manual that the angle should be Atdc so if I do not mistaken 246 °, unfortunately impossible to start like that, while doing tests we noticed that the coils were reversed compared to the connection, ignition 1 controls the 2/3 coils and vice versa, perhaps the bosch 211 connections, we have solved this problem by reversing the wires.
So configured correctly the engine refuses to start. So we decided to calculate the trigger angle ourselves with a lamp, we found 264 ° or something like that I do not know but that's not the problem, thanks to the lamp we see that the ignition is done at the right time, on the right cylinder, there is injection but the engine does not start.
By putting 114 ° back and the coils in the "wrong" direction it starts without even touching the accelerator pedal.
So why does it work with the wrong settings and refuse with the right ones.
So if you have any ideas or have ever been faced with a problem like this because I don't know what to do anymore, thank you and I hope this is understandable, I will try to upload my file tonight because I am at work for the moment.