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ht4e · 02-08-2021, 01:37 PM

@wymoteeZ
AEI30-4900
Failsafe boost +afr gauge
So the green wire/failsafe does not do anything unless I have some kind of aftermarket standalone? I thought it would at least have a warning or limit rpm.
Where did you hook your power to? I am told that it needs its own circuit for accuracy of information and reliability for any AFR gauge-something like a relay that could switch on/off with the key in "on" position.

Below was what I was told,
The green failsafe output wire just grounds internally when a failsafe condition occurs. It does not send any CANbus messages, but if your ECU has an analog or digital input that is pulled up to 5 or 12 volts, you can connect this wire to that circuit IF you can program the ECU to see the voltage drop as a failsafe to command less ignition timing advance, more fuel, limit throttle, etc.

02-08-2021, 01:37 PM	#5 (permalink)
ht4e Base Member Join Date: Apr 2018 Location: Houston Posts: 51 Drives: prospective 370z Rep Power: 7	@wymoteeZ AEI30-4900 Failsafe boost +afr gauge So the green wire/failsafe does not do anything unless I have some kind of aftermarket standalone? I thought it would at least have a warning or limit rpm. Where did you hook your power to? I am told that it needs its own circuit for accuracy of information and reliability for any AFR gauge-something like a relay that could switch on/off with the key in "on" position. Below was what I was told, The green failsafe output wire just grounds internally when a failsafe condition occurs. It does not send any CANbus messages, but if your ECU has an analog or digital input that is pulled up to 5 or 12 volts, you can connect this wire to that circuit IF you can program the ECU to see the voltage drop as a failsafe to command less ignition timing advance, more fuel, limit throttle, etc. Last edited by ht4e; 02-08-2021 at 10:48 PM.