Q's on plx wb install
#1
Q's on plx wb install
I will be installing a plx m-300 W/B o2. I was going to replace my stock sensor with it, and i will be running uberdata also. The plx m-300 has both a narrowband and wideband out put on it. My question is do i conect both of those outputs to the o2sensor input on the ecu? That sounds wrong to me but i can't figure any other way.
#3
Re: Q's on plx wb install
It's also suggested that you locate the WBO2 sensor on your downpipe rather than right up front... I don't know your setup, but I still have my OEM NBO2 in my manifold (HF) and I have an extra bung just before my cat on the downpipe. I cut the O2 wire at the ECU (D14? so the ECU gets no NB reading from the OEM sensor) and ran my WB wire from the PLX unit into the ECU so it gets a WB reading. You should also tap your PLX power and ground into the ECU as well. When you tap into the O2 wire with your WB readings, you need to make sure your bin has the O2 heater & closed loop shut off.
When you're done tuning, you can turn the closed loop back on (not sure about the heater with a WBO2 sensor) and switch the wires from the PLX unit so it's feeding a NB signal to your ECU (as stated above). Or you could just hook up your old NB sensor and take the PLX unit out. Just a matter of pereference I guess.
When you're done tuning, you can turn the closed loop back on (not sure about the heater with a WBO2 sensor) and switch the wires from the PLX unit so it's feeding a NB signal to your ECU (as stated above). Or you could just hook up your old NB sensor and take the PLX unit out. Just a matter of pereference I guess.
#6
Re: Q's on plx wb install
Originally Posted by xenocron
You'd need two switches or a DPDT (I think)
One to turn off WB and turn ON narrowband and vice-versa at the same time.
One to turn off WB and turn ON narrowband and vice-versa at the same time.
#8
Re: Q's on plx wb install
Originally Posted by xenocron
Yeah, thats what i was talking about...just all the S's, D's, P's and T's confuse me
#9
Re: Q's on plx wb install
I was i little confused by the toggle swith thing I get the idea. I just used a car sterio speaker conector. It had two wires that had a plastic terminal on it with 2 male conectors on it, I use one one wire for the nb out out and the other for wb. And i have a female conector one the o2 sensor input on the ecu. That way i can just plug it to what ever input i need. I am not to sure about Grounding the resistor for the heated o2 sensor. I am gonna try and ground it to my battery ground.
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