Worcester/Boston Social Thread
So, my rear o2 currently has the fouler spacer thing-a-ma-jig...so if I remove said rear o2 and fouler, install wideband, and correct the ECU settings, this should do the trick without having to weld another bung for it, correct?
Would you happen to know how much the AFR's can differ? The rear o2 bung is located in the same place as where the factory placement for the rear o2 is. If this will not be an accurate reading, I will further invest in a new Megan DP and HFC. I should have never sold my DP to nsxerz
Would you happen to know how much the AFR's can differ? The rear o2 bung is located in the same place as where the factory placement for the rear o2 is. If this will not be an accurate reading, I will further invest in a new Megan DP and HFC. I should have never sold my DP to nsxerz
So, my rear o2 currently has the fouler spacer thing-a-ma-jig...so if I remove said rear o2 and fouler, install wideband, and correct the ECU settings, this should do the trick without having to weld another bung for it, correct?
Would you happen to know how much the AFR's can differ? The rear o2 bung is located in the same place as where the factory placement for the rear o2 is. If this will not be an accurate reading, I will further invest in a new Megan DP and HFC. I should have never sold my DP to nsxerz
Would you happen to know how much the AFR's can differ? The rear o2 bung is located in the same place as where the factory placement for the rear o2 is. If this will not be an accurate reading, I will further invest in a new Megan DP and HFC. I should have never sold my DP to nsxerz

Anyone else have next monday off. I guess it is president's day, i just found out i had it off. High Five!
That is fine for placement. You can't totally remove the rear o2 because you will throw a code for the heater circuit. They are still working on a patch to fix that. Placement really affects reading the correct AFR at the correct RPM. fuel ratio should still be accurate as long as there are no exhaust leaks.
I also used the spacer technique on the rear O2 sensor to trick the ecu
I read somewhere, it might have been posted here, can't you simulate the O2 sensor's heating circuit using a resistor? I have the problem on my car as well, though for the upstream o2 sensor since I replaced it with my wideband.
I also used the spacer technique on the rear O2 sensor to trick the ecu
I also used the spacer technique on the rear O2 sensor to trick the ecu
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From: Northborough, MA
Thread Starter
Evolving Member
iTrader: (7)
Joined: Jun 2007
Posts: 359
Likes: 0
From: Northborough, MA


