bruce3427 Posted January 28, 2019 Report Share Posted January 28, 2019 Hello team, I was configuring my g4+ pnp last week. Tried to connect AEM x-series wideband to ecu(through CAN). Everything is good at first, than suddenly I lost my tacho signal. It was strange because ecu still have normal rpm signal. Only instrument cluster and hks evc(can read TPS) lost it. Here is my troubleshooting attempt: 1.Restart engine 2.Restart aux function 4 (tacho) 3.Adjust tacho duty cycle (25% and 75%) 4.Reload base map 5.Downgrade firmware But I have no luck to solve this problem. If I change back to OEM ecu than cluster and evc will back online, so it shouldn’t be a wiring problem. Do I have something else worth to try? Any help will be appreciated. Car:2003 Subaru Impreza WRX STI EDM ECU:G4+ WRXLINK 7-9 PNP Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 28, 2019 Report Share Posted January 28, 2019 The tacho is connected to Ign output 5. Set Aux 4 to off, set Ign 5 to tacho. Quote Link to comment Share on other sites More sharing options...
bruce3427 Posted January 29, 2019 Author Report Share Posted January 29, 2019 Thanks Adam, my tacho is working as normal now. But there is one thing that I can't figure out. According help file, Ign 5 should be on Expension 2. Does this ECU has multiple pinout mode? Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 30, 2019 Report Share Posted January 30, 2019 The pinout on that ECU was recently updated. You can find an updated copy of the manual to match it on the webpage for that ECU. Quote Link to comment Share on other sites More sharing options...
bruce3427 Posted January 31, 2019 Author Report Share Posted January 31, 2019 Awesome, I'll check it later. Quote Link to comment Share on other sites More sharing options...
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