[Andrei1744]

Hi y'all! I have built a speeduino (version 0.4.3) and now I need to make the connections from the stock ECU connector to the speeduino. I have some diagrams of the stock ecu connector here https://postimg.cc/gallery/3DWKWym.
I made some connections already, but I don't know where to connect some things. Here is a picture:

Screenshot 2024-08-07 105228.png (55.47 KiB) Viewed 384 times

I'm not sure if everything is in the right place. Can anybody help me? This is the last major step in finishing my renault's custom ecu.
I've had this project going for 3 months already, so any help is appreciated!

[PSIG]

I did not review your connections, but stating that grounds are typically separated and grouped for sensor grounds, noisy grounds, and power grounds. When you review your connections, I would try to sort the grounds into each category, to different ground pins or wires, e.g., all sensor grounds on one pin, all higher-current power grounds on another, etc.

[Andrei1744]

I'll try to organise the grounds, but until then I need to figure out the connections..

[PSIG]

I'll try to organise the grounds, but until then I need to figure out the connections..

I said that because you do not have connections for your temperature sensor grounds, for example.

I made some connections already, but I don't know where to connect some things.

It would help us help you if you listed the items you don't know where to connect.

[Andrei1744]

Basically the lines that don't have a number on the right and aren't bolded are the ones that I didn't figure out

[dazq]

You should be using BOTH of the injector channel output pins . There are two pins for each channel to share current load through the connector, using only one per channel may cause damage.