Can't search on the term O2 unfortunately.

Just wondering when people are changing these out on an otherwise stock car?

Do we need to change them all?

Can't search on the term O2 unfortunately.

Just wondering when people are changing these out on an otherwise stock car?

Do we need to change them all?

Gene,

From my research & reading O2 sensors are a normal wear & tear item that need replacing after a while.

But it seems to vary a lot from make & model and then car to car as to exactly when they conk and when they need replacing.

For 3rd gen Magnas and 380s they can conk anywhere from 100,000k to 250,000+k.

The average seems to be around 150,000k.

For a 380 with four O2 sensors, it seems the two front sensors usually conk before the two rear sensors.

So I'd be replacing the front two sensors at the 150,000k mark as a precaution, and the rear two at around 200,000k.

Rather than expensive OEM sensors, I've used these on both my 380 and my son's car (2000 Ford Laser): http://www.ebay.com.au/itm/NEW-STANDARD-SMP-4-WIRE-UNIVERSAL-OXYGEN-SENSOR-SG1273-/150678254176?, with no problems.

Just a bit of fiddling around with cutting and crimping, but worth the effort I reckon.

I'm guessing a mechanic could put those together? I had my O2 sensors for the Falcon done at a muffler shop, but they were plug and play once you were under there. I used Bosch ones, for which they have a correct part. For the 380 they show their universal sensor which is $200!!!

Are US Galant sensors compatible?

I'm guessing a mechanic could put those together? I had my O2 sensors for the Falcon done at a muffler shop, but they were plug and play once you were under there. I used Bosch ones, for which they have a correct part. For the 380 they show their universal sensor which is $200!!!

Are US Galant sensors compatible?

Yep, a mechanic could put them together, but it's a fairly easy DIY job. I used three of the Bosch universal sensors on my 380, when I had to extend the sensors when fitting RPW extractors, before I discovered the ones I linked to. Could have saved a packet, but I needed the new sensors the same day so I got my exhaust guy to order in the Bosch ones on the day.
With the Bosch ones you still have to "cut and shut", but they come with a fancy connector plug which is possibly more secure than the crimps but extra mucking about.
Not worth the extra $ IMHO, as long as you take the time & care to do the crimps properly.
The US Galant sensors would be compatible, providing the plug on the non-sensor end is right. But any 4 wire O2 sensor will be compatible if you're prepared to cut & shut.

Ok, thanks for that, seems a cost efficient way to renew the sensors. They are fairly important and cars seem to be coming with more and more of them to keep up with emissions targets.

wrong post

Ok, thanks for that, seems a cost efficient way to renew the sensors. They are fairly important and cars seem to be coming with more and more of them to keep up with emissions targets.

Still cheaper than buying local but it's a bummer when the shipping for the sensors is even more than they are!

I replaced front bank primary a couple of months ago (failed at about 85K). Cheapest I found was genuine from dealer for about $110. 5 minute job if u have the tool ($25 from Repco) to unscrew and replace

How is a faulty sensor shown? as a CEL?

Yes, it seems oxygen sensor go anywhere from around 150 000km. Can't remember the site, but might have been Bosch where replacement intervals were stated. Does anyone have any idea whether MAF sensors and cat converters need replacement and any idea when??

So if they is no CEL on the dash I shouldn't worry about the sensors, or anything like that?

So if they is no CEL on the dash I shouldn't worry about the sensors, or anything like that?

Worthwhile for you to read the 380 manual to see what error codes things like oxygen sensors, MAF etc can throw up. If the ECU reports no errors, there is no point replacing anything.

If your car starts running like crap and you have a CEL, get it checked out. It could be a failed or worn out O2 sensor, or it could be a million other things.

I reckon it pays to buy an OBD2 scanner, which will tell you what the CEL error codes are.

This site is pretty good for info about what the codes mean:

http://www.myscantool.com/dtc/powertrain.html

Where can you buy the OBD2 scanner?

http://www.myscantool.com/dtc/powertrain.html

Very useful info!
Apparently the 380 can report oxygen sensor failure, injector failure, and ignition coil problems/plug misfire, plus a lot of other stuff, very clever!

http://www.ebay.com.au/itm/U480-OBD2-OBDII-CAN-BUS-Code-Engine-Memo-Scanner-Reader-Auto-Car-Diagnostic-Tool-/171018091504

$15! Is that right?

Hey guys my o2 sensors are playing up as well. Are all universal 4 wire sensors compatible and is there a specific thread type/size i should get?

Hey guys my o2 sensors are playing up as well. Are all universal 4 wire sensors compatible and is there a specific thread type/size i should get?

What error codes are you getting?

Bank 2 lean and cat not up to temp or some crap.

Going to service it and have it tuned after the sensors are done

Whereabouts does the scantool plugin on the car?

Whereabouts does the scantool plugin on the car?

To the OBD2 port.

Under the dash, driver's side, fairly close to the centre console. It's "back and up" and not super easy to see or get at, just feel around under there until you find an almost rectangular shaped plug about 3cm by 1.5cm, in a vertical orientation. Once you find it the first time you won't forget where it is!

To the OBD2 port.

Under the dash, driver's side, fairly close to the centre console. It's "back and up" and not super easy to see or get at, just feel around under there until you find an almost rectangular shaped plug about 3cm by 1.5cm, in a vertical orientation. Once you find it the first time you won't forget where it is!
Cheeers

can anyone give me the low down on what to look for for a compatible universal o2 sensor?

can anyone give me the low down on what to look for for a compatible universal o2 sensor?

Danny,

Pretty much any brand name 4 wire O2 sensor, with a standard 22mm nut.

Bosch, AC Delco, Nippon Denso etc.

Remember that the 380 has four O2 sensors with different length wiring.

That's if you're prepared to "cut & shut", as for plug n play for a 380 it's OEM or a limited range of after-market ones, such as these:
http://www.o2sensors.com.au/search/application?makeID=28&modelID=2534&engineID=2976&x=63&y=26

Or maybe this one, although it's hard to tell if it's plug n play, looks more like a 'universal fit' cut & shut one to me:
http://www.magnumtuning.com/en/detail/bosch-oxygen-sensor-universal-wiring-vehicle-specific/mitsubishi/380/3-8l

Thanks for all the info.

Got a bunch to do on the car to get it running smooth again plugs, maf n throttle body clean, cam cover gaskets and ill do all the o2 sensors as well. Its not a bad car but it looks like the last owner didnt do anything till the car stopped running.