o2 sensor defouler / spark plug defouler

[vteccoupe]

Does anyone knows if these are sold locally?

Basically it places the o2 sensor further away from the flow of the exhaust, so as to prevent it from throwing CEL code.

http://img136.imageshack.us/img136/8277/img1345cq3jw2.jpg (http://imageshack.us)

[Limbo]

i'm sure you could just get a fitting from pirtek that did the same thing

[vteccoupe]

i'm sure you could just get a fitting from pirtek that did the same thing

sorry wat is pirtek?

[vteccoupe]

http://img186.imageshack.us/img186/609/963111101wl9.jpg (http://imageshack.us)

[Limbo]

http://www.pirtek.com.au/

[CL9R]

where can i buy it?? are they all the same size?

[Limbo]

actually you do know that if its too far away it defeats the purpose of the o2sensor

[aaronng]

actually you do know that if its too far away it defeats the purpose of the o2sensor

Yes, but all the secondary O2 sensor does is to warn if the cat efficiency has fallen below the cutoff point. It doesn't measure A/F ratio. That is carried out by the primary O2 sensor.

[vteccoupe]

that is for newer cars like euro/ dc5r?

dc2r only has 1 o2 sensor

[aaronng]

that is for newer cars like euro/ dc5r?

dc2r only has 1 o2 sensor

Then the DC2R's sensor is before the cat, and if it throws a code, you should read the code to see what the problem is, rather than to get a defouler.

[vteccoupe]

Then the DC2R's sensor is before the cat, and if it throws a code, you should read the code to see what the problem is, rather than to get a defouler.

yes code is o2 sensor

[aaronng]

yes code is o2 sensor

That means your O2 sensor is faulty. It is not caused by your exhaust being too rich. The single O2 sensor on your DC2R is supposed to read Rich/Lean. On newer OBDII cars, there are 2 O2 sensors, the 2nd one is meant to check if the cat is failing. So for OBDII, you can use a defouler on the 2nd O2 sensor to avoid CEL when you use a high flow cat. But there is no point putting a defouler on the 1st sensor because it reads rich/lean instead of cat pass/fail.

[dsp26]

^^so.. supposed to be for 2nd O2 only and useless on primary O2?

[Limbo]

i've only ever had 1 o2 sensor on all my cars ;)

Yeah primary one reads lean/rich and adjusts the car in closed loop. i.e leans out the car to 14.7:1 for better fuel economy when cruising.

The second one is cat failure one.

Either way i think its a waste of money. The first sensor will not work properly if you move it & the second sensor if you have it is so far back anyway its not gonna matter or make much difference

[aaronng]

^^so.. supposed to be for 2nd O2 only and useless on primary O2?

That's my understanding. There is no reason to put a defouler on the 1st O2 sensor because the first sensor tells the ECU whether you are running rich or lean. So you want your 1st sensor to be in the exhaust gas flow. Any CEL would be either Rich, Lean or sensor failed. So you want to take some sort of remedial action if the 1st sensor throws a code, not to put a defouler in like a bandaid solution, which just stops the O2 sensor from working properly, causing your engine to run rich without the ECU knowing it or worse, lean without the ECU protecting the engine by adding more fuel.

The 2nd sensor tells the ECU whether the cat is still working. So if you have a high flow cat, you can get cat efficiency CELs, which you would then want a defouler since the purpose of the high flow cat is to sacrifice efficiency for higher flow.

[urbanracer.com]

bump.. so does any1 know where to get one? i've been to repco and supercheap.. they dont know wtf im on about.. hahaha

[OMG.JAI xD]

Tried ebay?

[aaronng]

bump.. so does any1 know where to get one? i've been to repco and supercheap.. they dont know wtf im on about.. hahaha

Go to an exhaust shop. If they don't have one, they can make one for you.

[urbanracer.com]

im gonna get one fabricated this weekend hopefully. will let every1 know how it goes!