sbn1979 Posted May 17, 2022 Report Share Posted May 17, 2022 trying to free up injector drive 5678 for extra 4 injectors, moving ecu hold power from injector drive 8 to ignition drive 3, pin swapped pin 38 main relay into pin 22 ac, were on the money with wiring but doesnt work, can ignition drive 3 not be used as ecu hold power? even though we can select it? evo 7 4 plug btw running dbw on expansions so limited options thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 17, 2022 Report Share Posted May 17, 2022 Inj 8 has all the main relay control hardware connected to it and linked to pin 38, the control hardware also has input from DI1/Pin 82. So Inj 8 is not usable for anything but hold power in the as supplied configuration. You can contact tech support to ask if it may be possible to modify the board by cutting some tracks and adding in wire links to swap Inj 8 with Ign 3 but Im not sure how possible that is or if they would be prepared to do it. I dont even know if the existing PCB tracks are designed big enough for an injector etc. Quote Link to comment Share on other sites More sharing options...
koracing Posted May 18, 2022 Report Share Posted May 18, 2022 It should be possible to run secondary injectors in batch using only drivers 5 and 6, correct? Quote Link to comment Share on other sites More sharing options...
Vaughan Posted May 18, 2022 Report Share Posted May 18, 2022 49 minutes ago, koracing said: It should be possible to run secondary injectors in batch using only drivers 5 and 6, correct? G4X yes, G4+ didn't have sequential/group mode. That being said playing silly games with the sec/pri ratio or number of injectors wired to inj 5&6 and not caring about injection timing you could make it work. it would still reserve inj 7&8 though meaning you couldn't use them for anything else. Alternatively group staged mode with inj drive 1&3 to primary's and inj drive 2&4 to secondary's Quote Link to comment Share on other sites More sharing options...
sbn1979 Posted May 18, 2022 Author Report Share Posted May 18, 2022 Thanks for the input gents very much appreciated, I thought this would be the case and was very optimistic about what I could fit on. I think maybe going to a wire in ecu here as I’m requiring dbw, 8 injectors, sequential ignition, flex fuel, oil pressure, oil temp. So that alone I’ll need 2 extra ign channels as well… Quote Link to comment Share on other sites More sharing options...
Vaughan Posted May 18, 2022 Report Share Posted May 18, 2022 Looks like the Xtreme is what you want given you need 8inj, 8 ign and dbw Quote Link to comment Share on other sites More sharing options...
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