Edmund T Posted January 19, 2021 Report Share Posted January 19, 2021 Hi , I would like to install a Hitachi (GTR35) coils and run 'direct fire' if possible. I have a Link G4+ Pnp 5.6.8.3671, Ecu type G4+ Xtreme top board (v1.4) and main board V1.2 . Can I rewire AUX IGN 1 - 4 to each coils? Currently the Evo 9 Pnp ecu has Aux IGN 3 for fuel pump and Aux IGN 4 for condensor fans. These will need to be rewired to other available AUX outputs. Quote Link to comment Share on other sites More sharing options...
Vaughan Posted January 19, 2021 Report Share Posted January 19, 2021 looks like that would work just fine, there isn't any special hardware that I can see on those pins Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 19, 2021 Report Share Posted January 19, 2021 Vaughn beat me to it but I was nearly done so will add my reply for a little extra info: Yes, You can use ign 3 & 4 for COP conversion. For the fuel pump, any alternative aux output should be fine but for the condensor fan I would probably suggest using another Ign output (Ign 7 should be unused on a evo IX). The reason is fan relays are often "hot fed" and will back feed when ignition is switched off if you use a normal aux output, whereas ign outputs cant back feed. Quote Link to comment Share on other sites More sharing options...
Edmund T Posted January 19, 2021 Author Report Share Posted January 19, 2021 Vaughan and Adam, Thanks for the advice and support Vaughan 1 Quote Link to comment Share on other sites More sharing options...
Grant Baker Posted January 22, 2021 Report Share Posted January 22, 2021 I've done this 8-10 times now. Works perfectly! Quote Link to comment Share on other sites More sharing options...
Edmund T Posted January 25, 2021 Author Report Share Posted January 25, 2021 Thanks guys., Just sharing for others; I used the PRP recommended dwell times and it worked best. Initially, I used slightly lower values (-20%) to be on the safe side but car misfirted at lower boost runs. The dwell times below worked like a charm on 15psi and I have turned it up to 28psi on a 4G63 motor with a Garrett GTX3582R. Happy days. \ Quote Link to comment Share on other sites More sharing options...
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