Oreca Exhaust

[Adam.D]

Hi,

I purchased a Group A Oreca Exhaust the other day with a de-cat pipe and noticed that on my original exhaust has 2 sensors but this only has the one on the de-cat pipe. I wondered what people do with the other sensor when running a de-cat and if it will cause any other problems.

Cheers, Adam

 

[Cupman29]

Sounds like you've bought a ph1 decat rather a ph2. Ph1 has a single lambda sensors and ph2 has 2.

 

[Fletcher]

Make sure you get some videos up, once fitted.

 

[Adam.D]

Ok thanks mate I'll give K-tec a ring tomorrow and find out.
Pictures and videos to follow when fitted yes.

 

[Fletcher]

Ok thanks mate I'll give K-tec a ring tomorrow and find out.
Pictures and videos to follow when fitted yes.

Good stuff. I'd love a group A system, but they run fowl of lots of track day DB limits. :dapprove:

 

[ashleyt33]

Yo! I have one, just run the front sensor, leave the rear connected and just tie it up out the way, job done!

 

[Adam.D]

Yo! I have one, just run the front sensor, leave the rear connected and just tie it up out the way, job done!

Really? so if the second one isn't connected it won't bring a fault code up or something daft?
That's the best news i've had all day! what do you think of yours...loud? I'm expecting so. haha

 

[bmh.01]

If you disconnect it then yes it'll bring a fault light up. I'd just get another boss welded into the decat unless you have been sent a ph1 one by accident.

 

[Kam.]

a lambda sensor not plugged into the exhaust will detect clean air.
disconnecting it will bring a fault light..

 

[ashleyt33]

Really? so if the second one isn't connected it won't bring a fault code up or something daft?
That's the best news i've had all day! what do you think of yours...loud? I'm expecting so. haha

It is all good with the second one out of the exhaust. Make sure to leave it connected though as others have said, my light does not come on .

It sounds sweet! Its noisy on WOT and at low speeds, but I don't mind that, and its good from 50mph up, quite bearable. I have had so many comments about how it sounds over the last week. Fits very well to, no knocking over the axle like some others.

I had to remove the lower damper bolts so the axle would drop when fitting it though due to the join to the middle section being further up the system than my last system, but apart from that.......... Sweet as! And you get some free gurgles, bangs and pops to

 

[Adam.D]

It is all good with the second one out of the exhaust. Make sure to leave it connected though as others have said, my light does not come on .

It sounds sweet! Its noisy on WOT and at low speeds, but I don't mind that, and its good from 50mph up, quite bearable. I have had so many comments about how it sounds over the last week. Fits very well to, no knocking over the axle like some others.

I had to remove the lower damper bolts so the axle would drop when fitting it though due to the join to the middle section being further up the system than my last system, but apart from that.......... Sweet as! And you get some free gurgles, bangs and pops to

Great I'll make sure to do that, look forward to getting it fitted. Thanks for the information. Adam

 

[Adam.D]

Also thanks for the other advice I'll fit it and leave the second sensor out but still connected and if I get a light on as said I can easy take it off and weld another boss in. Thanks for the advice, Adam

 

[ashleyt33]

Did you get it fitted?

 

[Fletcher]

It is all good with the second one out of the exhaust. Make sure to leave it connected though as others have said, my light does not come on .

It sounds sweet! Its noisy on WOT and at low speeds, but I don't mind that, and its good from 50mph up, quite bearable. I have had so many comments about how it sounds over the last week. Fits very well to, no knocking over the axle like some others.

I had to remove the lower damper bolts so the axle would drop when fitting it though due to the join to the middle section being further up the system than my last system, but apart from that.......... Sweet as! And you get some free gurgles, bangs and pops to

Any pics/ videos yet?

 

[Adam.D]

Patience now, lol, never got a fitting kit so I've been waiting for that to turn up, decided to wait until saturday so I can use my mates hydraulic ramps and make the job easier... don't worry once it's on I'll want to show it off so there will be pictures and possibly video. Adam

 

[scotty2hotty81]

My disconnected post cat lambda has never bought up elm warning light on either of my 172's.

 

[Matt Cup]

This is the 2 1/2" system isn't it? Looking forward to some vids of it

 

[ashleyt33]

I uploaded a quick video of my group N on my build thread if you want a bit of an idea.