ArcticSIlver Posted January 23, 2018 Report Share Posted January 23, 2018 I have a link g4+ for skyline GTT, I would like to wire in my AEM gauges/sensors. However I'm unsure where the AUX negative from the sensor needs to be pinned in to the ecu. The AUX 5V positive from the sensor needs to be pinned into a AUX on the ECU ( pin 104, 106, 107, 111, 117, 118, 5, 11, 13, or 17) correct? Also why are some AUX pins duplicate on the ecu? (AUX 1,5) sorry for my incompetence, i'm new to this. Quote Link to comment Share on other sites More sharing options...
ClintBHP Posted January 24, 2018 Report Share Posted January 24, 2018 Exactly what gauges do you have ? Quote Link to comment Share on other sites More sharing options...
ArcticSIlver Posted January 24, 2018 Author Report Share Posted January 24, 2018 AEM Oil Press, fuel press, and wideband. Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 24, 2018 Report Share Posted January 24, 2018 They will need to be connected to analog inputs. The best option to connect these is using an expansion harness - they are quite low cost from a link dealer. You will need two expansion harnesses to connect 3 analog sensors. Quote Link to comment Share on other sites More sharing options...
ArcticSIlver Posted January 24, 2018 Author Report Share Posted January 24, 2018 Oh, i see, thank you. Quote Link to comment Share on other sites More sharing options...
ArcticSIlver Posted February 6, 2018 Author Report Share Posted February 6, 2018 So I got the expansion harnesses and Im a bit confused. For the aem gauges, Fuel pressure and Wideband have analog 5V out but no analog ground, however the oil pressure has analog 5v out and analog ground. How do i go about wiring in the fuel pressure and wideband to the expansion harnesses? Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 6, 2018 Report Share Posted February 6, 2018 what are the part numbers of your gauges? Quote Link to comment Share on other sites More sharing options...
ArcticSIlver Posted February 6, 2018 Author Report Share Posted February 6, 2018 Fuel pressure - 4401-09831 Oil Pressure - 30-0301 AFR - 4100-70683 I just got off the phone with AEM and they said that some of there gauges do not have analog negative output and just the analog positive can be hooked up on those ones. Is that safe? Does that sound right? I dont want to fry anything. Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted February 6, 2018 Report Share Posted February 6, 2018 yes it is safe. you will be fine to hook those up via 0-5v out with out a negative. Quote Link to comment Share on other sites More sharing options...
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