[Cperez]

Hi guys. I'm a bit confused here. I'm new to speeduino and I'm trying to figure out the right way to wire up my speeduino v0.4 to sequential injection without damaging anything. I originally had my car wired up for basic distributor and batch fire injection, but it turned out to be too noisy. I then wired it up for sequential injection, but I can't get the car to start now. I had changed/repinned my injector wiring on the speeduino side from batch fire to sequential. Where I'm getting confused is do i leave my injector wiring as I had it before with batch fire 1+40 , 2+39? Or use pins 1235?. Another question is if Ieave it
pinned with 1+40 would this be (injector 1), 2+39 ( would this be injector 2?). do I have to wire 1+40 together then wire it to injector 1 and 2+39 to injector 3 on my Honda?. Sorry I know this might be a bit confusing, but this is where I'm stuck at with limited time to mess my car lol. Help would be highly appreciated thank you very much.

[theonewithin]

The injector outputs are fired sequentially.

So 1-2-3-4.

This means if your firing order is 1-3-4-2 you need cylinder 1 to INJ1, cylinder 3 to INJ2, cylinder 4 to INJ3 and cylinder 2 to INJ4.

No idea which pins these are. I believe the IDE uses 2 pins per output if required. This is purely to double the wiring for spreading current out a bit.

Check the schematic for details on pin assignments etc.

[Cperez]

That's what I did. Im just not sure if I have to use the second output on the channel as well. Appreciate your help. Thank you very much.

[PSIG]

… do I have to wire 1+40 together then wire it to injector 1 and 2+39 to injector 3 on my Honda?.

Correct. This agrees with @theonewithin's statements and reasoning, connecting the INJx output sequence to your firing order.

David

[Cperez]

Thank you David.