View Full Version : Wiring of front 02 sensor.... Help


erx8s
08-08-2007, 06:48 PM
I Searched but could not find a diagram showing the correct wiring of the front 02 sensor to get the correct readings from the catalyctic converter .

Having burnt out the stockcat , i replaced it with a Aftermarket Metalcat stainless steel one , i was told that it was indestructable well after only 9000km it burnt out .
I have found a complete second hand stock RX8 exhaust and decided to put it back on , at least the original stock cat lasted for 57,000km , but i need to know how to correctly wire up the front 02 sensor as some of the wiring has melted and came off .

Any help greatly appreciated .

Ben

http://img504.imageshack.us/img504/7190/metalcatgb0.jpg

TeamRX8
08-08-2007, 07:09 PM
just your friendly neighborhhood Team talking his usual pointless shizit :lol2:

erx8s
08-08-2007, 07:24 PM
Thanks , is this the right diagram ? because i believe MM pointed out that the RX8 Manual was initially incorrect with the wiring diagram of the 02 sensor :shocking: :boink:

Ben

SureShot
08-09-2007, 11:48 AM
I thought the stock cat had a government mandated warranty?

I'd have a straight pipe fabricated to bolt in the cat position and swap in a cat for a few days just to pass emissions testing.

Of course it would be loud.. :)

erx8s
08-11-2007, 12:33 AM
Wired up rear O2 Sensor everything seemed fine i cleared the ECU after 3 km the car goes into limp mode engine light goes on :banghead:

Once again i let engine cool down reset ECU Start her up as soon as cat gets to a certain temperature she goes into limp mode .

Any one know what to do , have i wired up the sensor wrongly ?

Ben

erx8s
08-15-2007, 02:33 AM
Bump

StealthTL
08-15-2007, 02:50 AM
You are trying to rewire the FRONT O2 sensor? The four-wire one?

Like Teams .pdf shows, the blue/orange and white/red wires go to the heater, you may have got the other two reversed, the colors are very similar (and I'm color blind...)

S

erx8s
08-15-2007, 06:56 PM
I am after the rear 02 sensor wiring , its shown on the diagram but is it correct ?

Ben

erx8s
08-22-2007, 04:10 AM
Bump

StealthTL
08-22-2007, 05:53 AM
Front, back, I don't see your problem - they are both on Team's .pdf?

That is a page from the manual, and it's correct....

S

JIN13
03-01-2008, 06:54 AM
I'm also looking for the rear O2 sensor wire colors any help????pics diagrams ???

GAMBEAN
03-02-2008, 09:22 AM
try 10 posts up for the answer.

nelsonrx8
03-02-2008, 09:36 AM
i wish i knew what i was looking at

HiTMaNN
03-02-2008, 11:01 AM
I'm also looking for the rear O2 sensor wire colors any help????pics diagrams ???

Fail...

StealthTL
03-02-2008, 11:25 AM
OK, Team did the hard work in post #2, so I will explain.....

The square marked Front Sensor has 4 wires -

heater power, red/white
heater switched ground, light blue/orange
sensor in, violet
sensor out, pink

The square marked Rear Sensor has 4 wires -

heater power, red/white
heater ground, red
sensor in, yellow
sensor out, black/red

The black/red wire may be useful for an air/fuel meter. Don't fuck with any of the others.

S

JIN13
03-02-2008, 04:24 PM
Thanks man this is what I was looking for........

OK, Team did the hard work in post #2, so I will explain.....

The square marked Front Sensor has 4 wires -

heater power, red/white
heater switched ground, light blue/orange
sensor in, violet
sensor out, pink

The square marked Rear Sensor has 4 wires -

heater power, red/white
heater ground, red
sensor in, yellow
sensor out, black/red

The black/red wire may be useful for an air/fuel meter. Don't fuck with any of the others.

S

Phish806
03-05-2008, 12:05 PM
Isn't the sensor before the cat going to be the most accurate reading, which would be the pink wire for the a/f gauge. correct?

SANTI
12-29-2010, 03:50 PM
is the sensor in the signal wire and the out the ground?

SANTI
12-29-2010, 03:51 PM
is the sensor in the signal wire and the out the ground