Thread: Regrounding the O2 Sensor

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2008-08-13 14:08:54

#261

Pretty White Online/offline status of Pretty White is unknown

Nehemiah 5:19

Join Date: 2007-12-13
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OK, cause when you buy a new O2, thats whats they are offering as the before the cat O2 sensors. (13039). I checked several stores and thats the only kind they offer for the NX/Sentra. Strange.
Now back to the topic. Innovation coming out about the cars. Beautiful. Where are the older Nissan heads that could be discussing this?

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Habbakuk 2:2-3

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2008-08-13 15:51:36

#262

Vadim

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Lol who knows?

Anyway pick your self a 15727 from RockAuto and hack away!

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2008-08-14 08:03:15

#263

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Nehemiah 5:19

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Ground where I regrounded the MAF or the spare bolt hole next to it?

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2008-08-14 13:06:52

#264

Vadim

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Originally Posted by Pretty
Ground where I regrounded the MAF or the spare bolt hole next to it?

No, best ground for MAF and O2 sensor is the Intake Mani

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2008-08-14 15:32:33

#265

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Nehemiah 5:19

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That is where the ECU and my MAF is regrounded. There is a second hole there.

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2008-08-14 19:32:00

#266

DC Scotty

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Originally Posted by Pretty
It is the 3rd style. It is pictured but no description. Nissan and Autozone used to sell the thimble style for our cars, but this new style is what all the dealers had in stock. Any clue?

Thats Zirconium Ceramic O2 sensor. Best used with OBDII cars which has faster ECU processors. Bosch & NGK makes them for our cars but they are still 3-wire sensors...

For this mod, Get the Bosch 15727 Universal 4-wire O2 sensor.

Originally Posted by Pretty
That is where the ECU and my MAF is regrounded. There is a second hole there.

Its best to mount the ground (using a grounding ring connector) to the same ground screw as the ECU & MAF. But, the other screw will work as well.

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2008-08-14 19:39:27

#267

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Nehemiah 5:19

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Originally Posted by DC
Thats Zirconium Ceramic O2 sensor. Best used with OBDII cars which has faster ECU processors. Bosch & NGK makes them for our cars but they are still 3-wire sensors...

For this mod, Get the Bosch 15727 Universal 4-wire O2 sensor.

I asked because I was wondering why they switched styles. The Thimble style is only available in Universal.

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Habbakuk 2:2-3

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2008-08-14 23:06:43

#268

squirlz

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Originally Posted by DC

Its best to mount the ground (using a grounding ring connector) to the same ground screw as the ECU & MAF. But, the other screw will work as well.

My intake mani has a ring terminal on each of the screws. It should not matter which one you use but if you have only one set of wires on one screw than i would ground it to that one.

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2008-08-15 01:03:16

#269

squirlz

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Just got back from a short drive after installing the new O2. I took it easy for about 10 mins and let the car warm up. After that i started to get on it and it seems a lot smoother. Before i had a dip or lag around 3-4K and now it seems to be gone. I changed nothing else and i didnt reset the ECU yet. I might let it go since it seems to be better already. Not sure if the idle got any better but it seems smoother in the upper RPMs as well. I have to fill up tomorrow so i will start logging MPGs as well and see if that got any better. But it was worth getting rid of that dip, i cant wait to see what else got better.

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92 Infiniti G21 - 242 WHP & 182 Ft-LBs (Mustang Dyno) - NA 88mm 12.5:1 VE, N1 cams, Xcessive Intake, Q45 TB, Mazworx Header, 3" Exhaust, Nismotronic ECU on MAP and IAT.
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2008-08-15 01:04:45

#270

Wayne

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