RH OXY sensor Vs exec Please Help!

[Jager]

Went on a trip to melb, and noticed the engine light some on multiple times throughout the trip. Got there fine. On the way back, when i first started the car, it was running like a shaft cutter, just below 1000 revs. Put it in gear and gave it a bit of throttle and it stopped vibrating like a bitch and was running fine. It has never had a problem starting and has always turned over nicely.

Got home, and check the Fault Codes, Got 13.
So i need to replace my oxy sensor. Slight problem, i have no ####ing clue where it is or how to do it, i have surfed the forum but can't find anything descriptive enough on the location and how to replace.
Off my gut feeling its the sensor located on the right of the right header, easily visible when looking from behind the right wheel hub. Am i right in saying this?
Also how do i replace it, and is there any other things i should consider replacing that could be causing this to happen.

I have a VS Exec BT1, and its got wiring modifications all though it, so the least i have to do regarding electrics the better.

An idea on fuel econ, i put 70 bucks worth of fuel in over the weekend, the trip in total was 400kms there and back, got home with half a tank.

[Brett_jjj]

The oxygen sensors are located just down from the exhaust manifolds, you can see them sticking out of the exhaust pipes,they have wires running from them. Heres a pic of the VN to VR V6 ones, these models only use 1 oxygen sensor, the VS V6 ecotec has 2 sensors, one on each side for each bank of cylinders.The oxygen sensors screw out of the fitting in the exhaust pipe.

[seq4x4]

Its on your y piece. Jumper under and look up towards the header. All you need is a spanner. Replace both at the same time.
Look to the left of the dust cover for the rotor in this photo.


You dont need to take the wheels off, you just jack it up and slide under.

[Not_An_Abba_Fan]

You say BT1, is it a V6 or V8?

The V6 ones are in the Y pipe up near the manifold, one on each side. The V8 only has one in the Y pipe back towards the cat.

You will need to unplug it from the harness and undo it using a 22mm or 7/8" spanner.

[seq4x4]

Also forgot to mention:
V6:
DTC 13 will set if no DTC 19, DTC 21 or DTC 22 is active and all conditions exist for 26 seconds.
V8:
DTC 13 will set if no DTC 21 or DTC 22 is active and all conditions exist for 20 seconds.

[Jager]

Its a V6, Cheers for the help i will go to autobarn and get two oxy sensors and some plugs.
Will this stop the dodgey starts? Or is that a fuel line/head/cylinder problem?

[Jager]

[QUOTE=seq4x4;1998083]Also forgot to mention:
V6:
DTC 13 will set if no DTC 19, DTC 21 or DTC 22 is active and all conditions exist for 26 seconds.

Excuse my stupidity, but i do not quite understand this, should I check those sensors as well? Is that what you're saying?

[seq4x4]

Error code 13 will be set if the TPS wasnt working for 26 seconds.

[seq4x4]

DTC 13 V6 PCM

RIGHT HAND (RH) NO OXYGEN SENSOR SIGNAL

Circuit Description:

The exhaust oxygen sensor is mounted in the exhaust pipe with the sensing portion exposed to exhaust gases. After the sensor is hot (360 degrees C), it becomes a voltage generator, producing a "changing" voltage. This voltage ranges from approximately 100 millivolts with a "lean" exhaust, to 900 millivolts with a "rich" exhaust. When the sensor is cold (below 360 degrees C) it acts like an open circuit and produces almost no voltage. The PCM supplies a very small "bias" voltage between terminals D13 and D14, normally about 450 millivolts. If measured with the 10 megohm digital voltmeter, it may measure as low as 350 millivolts. When the sensor is hot, it's output overshadows this PCM supplied voltage.

When the fuel system is correctly operating in the closed-loop mode, the sensor output is changing several times per second, going above and below a mid-point range of 490-500 millivolts at a hot idle. The PCM compares the voltage between the sensor signal and sensor earth terminals and decides the needed fuel mixture correction. The PCM also monitors the changing voltage, watching for transitions above and below the mid-point range, to decide when to operate in the closed-loop mode. An open circuit, defective, or contaminated sensor could cause the voltage to stay within a 410-477 millivolt band too long, keeping the system in open-loop and setting a DTC 13.

DTC 13 will set if no DTC 19, DTC 21 or DTC 22 is active and all conditions exist for 26 seconds:
Engine has been running for at least 4 minutes and 10 seconds, and...
Engine coolant temperature is more than 85 degrees C, and
Throttle Position (TP) sensor voltage indicates the throttle is open more than 15%

and

RH O2 sensor voltage stays between 410-477 millivolts.

*When DTC 13 is active (MIL) ("Check Powertrain" lamp "ON"), the PCM will operate the fuel system in the open-loop mode.

[Jager]

Okay so check my throttle position sensor to. THanks alot for the help.