DanSJ80 Posted April 4 Report Share Posted April 4 Hi, This is my first time doing a loom, please go easy on me . I still plan to incorporate bulkhead auto sport connectors at the firewall, just making sure that I have understood the wiring side properly before I go and plan that out. I am laser cutting a 24-1 trigger wheel for Crank, mounting it to the front of the harmonic balancer and fabricating up a bracket to mount a sensor I pinched off the k20. In future i've left some pins free for the k20 vtec and a future aftermarket E-throttle setup which I hope to get cruise control working etc. i've tried to make the diagram easier to follow by having pages showing the outputs into their own segments but keeping earth in every diagram. if there is an easier you'd prefer i relay this information let me know. In the AC wiring, I assume that if the command from ecu to send to ac clutch has to first pass thru the 2 pin dual switch it saves using extra pins to read that sensor. as the AC goes thru the amplifier it was a bit difficult to follow. thank you. DS Fury Wiring Rev A.pdf Quote Link to comment Share on other sites More sharing options...
curly Posted April 4 Report Share Posted April 4 I haven't looked over it fully, but I glanced. Looks like you've spent a lot of time on it, looks pretty good, but I'll throw a wrench in your works. Have you considered a PDM? DanSJ80 1 Quote Link to comment Share on other sites More sharing options...
Vaughan Posted April 4 Report Share Posted April 4 You're trying to trigger the AC Clutch and Condenser Fan relays with a high side signal from inj5&6 which can only do low side control. Same issue with Thermofan on Aux 3. Aux 7 controlling the starte solenoid can do high side but you generally would try and use low side triggering for this. I would also recommend moving the coil power for the fuel pump relay and isc solenoid relay from the ignition switch signal to the ECU power side of the relay switch so that if the main relay fuse blows it doesn't power up those devices while the ECU is not powered causing all manner of weird back feeding issues. If it were me I would run Coils, Injectors, ISC Solenoid and ECU all off of one 30A capable relay and fuse, I only see separate relays for those things as added complications and added room for issues to occur with no real benefit. I would also have the power side of the coil for all other relays (fuel pump, starter, fans etc) coming from the ECU power on the ECU side of that relay. Your pinout also seems to be setup for an Xtreme not a Fury as you are trying to use B plug pin 30 as a digital input when it is one of the dedicated wideband pins on a Fury and you have a CAN based wideband instead of wiring the sensor directly to the ECU. DanSJ80 1 Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 4 Report Share Posted April 4 Fuel pressure sensor is connected to an aux? The AC pressure switch is usually fitted between the AC request switch and the ecu, so idle up isn't activated if pressure is lost and you get proper clutch delay etc when cycled on the high pressure side. Some other stuff could be simplified such as clutch switch could just be connected to ground. DanSJ80 1 Quote Link to comment Share on other sites More sharing options...
DanSJ80 Posted April 5 Author Report Share Posted April 5 19 hours ago, curly said: I haven't looked over it fully, but I glanced. Looks like you've spent a lot of time on it, looks pretty good, but I'll throw a wrench in your works. Have you considered a PDM? When I first saw a PDM i was like omg yes must have, but a bit pricey unfortunately, that money I need for a custom flywheel and bellhousing to go between the k20 and R151f gearbox. 11 hours ago, Adamw said: Fuel pressure sensor is connected to an aux? The AC pressure switch is usually fitted between the AC request switch and the ecu, so idle up isn't activated if pressure is lost and you get proper clutch delay etc when cycled on the high pressure side. Some other stuff could be simplified such as clutch switch could just be connected to ground. Oops, definitely had it written down different. Awesome that AC request switch change makes sense and i made the clutch to earth change. 11 hours ago, Vaughan said: You're trying to trigger the AC Clutch and Condenser Fan relays with a high side signal from inj5&6 which can only do low side control. Same issue with Thermofan on Aux 3. Aux 7 controlling the starte solenoid can do high side but you generally would try and use low side triggering for this. I would also recommend moving the coil power for the fuel pump relay and isc solenoid relay from the ignition switch signal to the ECU power side of the relay switch so that if the main relay fuse blows it doesn't power up those devices while the ECU is not powered causing all manner of weird back feeding issues. If it were me I would run Coils, Injectors, ISC Solenoid and ECU all off of one 30A capable relay and fuse, I only see separate relays for those things as added complications and added room for issues to occur with no real benefit. I would also have the power side of the coil for all other relays (fuel pump, starter, fans etc) coming from the ECU power on the ECU side of that relay. Your pinout also seems to be setup for an Xtreme not a Fury as you are trying to use B plug pin 30 as a digital input when it is one of the dedicated wideband pins on a Fury and you have a CAN based wideband instead of wiring the sensor directly to the ECU. I had to re-read this so many times I think i now properly understand hi side and lo side with relays. Getting rid of some relays definitely makes life easier and that really makes sense regarding losing power to the ecu while other things are still powered. Regarding the pin numbering, here are some photos of the quick start guide i have, i have highlighted which i think correlate to the o2 sensor wiring. i think i made a mistake about which port to send the canbus wiring too from the can lambda? I've made those changes, hopefully a bit better DS Fury Wiring Rev B.pdf Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 6 Report Share Posted April 6 18 hours ago, DanSJ80 said: Regarding the pin numbering, here are some photos of the quick start guide i have, i have highlighted which i think correlate to the o2 sensor wiring. i think i made a mistake about which port to send the canbus wiring too from the can lambda? The Fury has a builtin lambda controller, it doesnt need a CAN lambda controller, you can wire the LSU4.9 sensor directly to the relevant pins on the ecu. DanSJ80 1 Quote Link to comment Share on other sites More sharing options...
DanSJ80 Posted April 6 Author Report Share Posted April 6 45 minutes ago, Adamw said: The Fury has a builtin lambda controller, it doesnt need a CAN lambda controller, you can wire the LSU4.9 sensor directly to the relevant pins on the ecu. thanks again for all your patience and help. I wish i knew that before i bought the lambda kit. ouch haha. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.