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Posted 15 December 2003 - 03:10 PM
I heard that the O2 sensor goes bad after about 80K miles. It either doesn't work or gets lazy. I still get decent mileage in this 92 loyale (auto) - 29 mpg on highway only, but I wonder if I can improve that by getting a new sensor installed.
Secondly, where do you get a new O2 sensor? An online source?
Any O2 sensor stories?
Posted 15 December 2003 - 03:22 PM
Posted 15 December 2003 - 03:30 PM
Posted 16 December 2003 - 12:31 AM
Posted 16 December 2003 - 02:09 AM
the o2 sensor does the fine adjustments to your mixture. running without it is not going to harm the car right away but over time it will. subarus are not to reliant on the o2 sensor and willrun halfway decent on a bad or missing o2. some other makes of cars will run horrible with a bad o2.
the mileage recomendation for changing the o2 is primarily for prevenitive measures. bad o2s often kill the cats and thats usually a lot more money than the o2 sensor.
if you want to build your own exhaust. then just buy a o2 bung and weld it into your system.
Posted 16 December 2003 - 02:59 PM
I don't particularly trust generic stuff, to be honest.
Posted 16 December 2003 - 04:20 PM
Hey, I've got a Blaupunkt stereo (Bosch division), and I'm happy enough :-)
Posted 16 December 2003 - 10:08 PM
Posted 17 December 2003 - 12:04 AM
Our stock ones are 3-wire, one for sensor input, one for the heater, and the 3rd for the heater to ground back to the ECU. The sensor input grounds through the exhaust.
Well if your car is old and the exhaust is starting to rust, it's probably not a very good ground. So by splicing the 4th wire (sensor ground) with the heater ground, you can ground the sensor input to the ECU also, which should render you a more accurate sensor...
I have yet to try this, but if I do, I will report back with results...
Posted 17 December 2003 - 11:45 AM
Posted 17 December 2003 - 07:20 PM
I'm new here - just wanted to say how much I like this board. Have learned a lot of valuable info from cruising the archives.
On the subject of O2 sensors:
The Bosch one referred to earlier is "generic" in that it has no connector on the end. You have to splice your old connector on, and make sure you keep the wire length the same as the old one (something about resistance in the wire, I think).
Bosch also makes a "OE type" version you can just plug right in. As far as I am aware, they both will do the job - one just takes more work and has a splice which has the potential to cause trouble if it develops rust, causing extra resistance.
BTW, NAPA (at least the one I work at) sells the sensors for less than Autozone, and you will be keeping your money in your own community, since most NAPAs are locally owned whereas AZ is a megacorp! (sorry for the shameless plug )
88 GL 4wd Wagon SPFI 5spd
Posted 23 February 2004 - 05:46 PM
Posted 23 February 2004 - 07:47 PM
Posted 23 February 2004 - 08:13 PM
if it is a regular one wire O2 that hooks up the same as your old one you should be ok. where are you getting this one from?
Posted 23 February 2004 - 08:52 PM
Bosch 11027 - $21.99 red sheet NAPA - this is the one with no connector (comes with splice and instructions)
NAPA used to sell Echlin oxygen sensors which cost $69 or so - changed to Bosch, no quality difference I'm aware of, just less expensive.
BTW, ask your parts guy for a discount - most of us have some latitude in pricing. I can give a "good customer" discount, a AAA member discount, and a wholesale discount. For example, the two Bosch sensors I would sell to USMB'ers at $40.91/$20.45.
Other parts have better discounting available. Sorry, I don't ship parts - you have to come and see me in Eugene.
Posted 23 February 2004 - 09:03 PM
I work at NAPA, and in my opinion, those ECH sensors were crap compared to BSH. We also sell the BSH starters and alts, and regulars prefer the BSH to the RAYloc stuff.
How about I made those AE pads smoke on my wagon? lol
Posted 23 February 2004 - 11:35 PM
Posted 23 February 2004 - 11:57 PM
I would like to get OEM sensor by Subaru, but if more expensive, a regular Bosch would work just fine.
I was doing a tune up on Chebby and someone told me to use AC Delco o2 sensors as superior to Bosch which supposeldy don't last as long as OEM, but if cheaper, might be a better deal.
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