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Primary O2 Sensor not in jumper harness
Posted: Thu Aug 12, 2021 8:44 am
by skubasteeve
Curious if I should have my PH02S connected to my ECU with the white wire or not, I currently have an X-Series UEGO connected to D14 and reading fine
S300 v1
B20B Turbo, RC750, PT5858
Re: Primary O2 Sensor not in jumper harness
Posted: Thu Aug 12, 2021 9:24 am
by Spunkster
Are you inputting a narrowband signal to D14?
Re: Primary O2 Sensor not in jumper harness
Posted: Thu Aug 12, 2021 9:54 am
by skubasteeve
Nope, D14 is getting signal from the Wideband currently
Re: Primary O2 Sensor not in jumper harness
Posted: Thu Aug 12, 2021 9:59 am
by Spunkster
You should not use D14 as it cannot see the full voltage range. Use D10 instead.
Re: Primary O2 Sensor not in jumper harness
Posted: Thu Aug 12, 2021 10:12 am
by skubasteeve
I plan to get there, I am just curious if its necessary to have the actual PHO2S white wire connected to something.
Also, if I use D10 I have to possibly remove some resistors?
Re: Primary O2 Sensor not in jumper harness
Posted: Thu Aug 12, 2021 11:55 am
by Spunkster
No you do not need it if you run closed loop from the wideband signal.
Re: Primary O2 Sensor not in jumper harness
Posted: Fri Aug 13, 2021 9:27 am
by skubasteeve
I hooked up D10 to wideband and adjusted in hondata and I am only reading 18 afr... is this a symptom of needing to cut the resistors?
Re: Primary O2 Sensor not in jumper harness
Posted: Fri Aug 13, 2021 9:51 am
by Spunkster
Is D10 still connected to its original location or is the wire cut?
Re: Primary O2 Sensor not in jumper harness
Posted: Fri Aug 13, 2021 1:51 pm
by skubasteeve
Wire was cut
Figured it out by cutting the resistors all good now