O2 Sensor on NA6

corners · Postby **corners** » Wed Oct 17, 2007 11:10 am

Hi

I recently did mechanic work on my 90 roadster. (The diff had to be replaced)
we removed the exhaust which included the cat converter. I however have lost the O2 sensor. I cant see any problems with the Car, IE running rich or lean or using extra fuel. The only problem is a funny idle at cold start which clears up. Goes from 800 to 1200 rpm.

Do i need to find another O2 sensor and replace it?

Thanks

corners · Postby **corners** » Wed Oct 17, 2007 1:47 pm

carsokay wrote:you may damage your cat. converter.

The inside of my cat is empty

I will have a look around for a O2 sensor.

Cheers

jules · Postby **jules** » Wed Oct 17, 2007 2:39 pm

OMG is it still walking

Jules

corners · Postby **corners** » Wed Oct 24, 2007 4:30 pm

So should I get another cat Converter and O2 sensor?

I've been told by most that you dont need a cat but might need to O2 sensor???

Fatty · Postby **Fatty** » Wed Oct 24, 2007 5:57 pm

yes get an o2 sensor. without one your car is running open loop all the time and fuel economy will be awful.

AJ · Postby AJ » Wed Oct 24, 2007 6:02 pm

jcs86 wrote:So should I get another cat Converter and O2 sensor?

I've been told by most that you dont need a cat but might need to O2 sensor???

if Mr Plod or the RTA finds out you aren't running a cat you'll be in bucketloads of trouble mate........LOL :roll:

Ajay · Postby **Ajay** » Wed Oct 24, 2007 8:09 pm

isnt tampering with a cat a sever criminal offense?.. a friend of a friend of a friend of mine used a run a little charade with a hollowed out cat and it used to shoot metre long flames out the back lol

corners · Postby **corners** » Wed Oct 24, 2007 9:53 pm

mx5_boy wrote:isnt tampering with a cat a sever criminal offense?.. a friend of a friend of a friend of mine used a run a little charade with a hollowed out cat and it used to shoot metre long flames out the back lol

I am aware of the QLD Fines etc but am more concerned about whether i need one for the engine. I will look at getting an O2 sensor as I know the engine relies on them for its air/fuel ratio

corners · Postby **corners** » Thu Nov 22, 2007 5:08 pm

Just curious regarding this.

The sensor I removed was the one after that cat converter. Do I need to replace this?

the one in the headers is still there untouched.

Sean · Postby **Sean** » Thu Nov 22, 2007 10:59 pm

jcs86 wrote:Just curious regarding this.

The sensor I removed was the one after that cat converter. Do I need to replace this?

the one in the headers is still there untouched.

You should replace the cat...

Reason?

We all need to breathe.

Curly · Postby **Curly** » Fri Nov 23, 2007 3:08 pm

jcs86 wrote:Just curious regarding this.

The sensor I removed was the one after that cat converter. Do I need to replace this?

the one in the headers is still there untouched.

If it's the one just after the cat - that's a temperature probe AFAIK, and doesn't affect your engine performance.