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car O2 sensor replacement

rh71

rh71

No Lifer
90 Honda Accord (no I haven't completely given up on it yet)

How easy is this to do yourself ? I check online for parts costs and it ranges from a "universal/standard" $20 to an NGK branded $90. Dealer install was $300 so you see why I want to attempt this myself.

Also, what's a TPS sensor and is this an individual part like an O2 sensor ? I heard it has something to do with the throttle body.
 
Unless on your car it's hidden somewhere funky all O2 replacement involves is simply unscrewing the thing from wherever it goes into the car, unplugging the wire, then putting the new one in. You'll want to reset the computer as well to get rid of the error code(s), which you can do by unplugging the battery for a while.

That said I spent a number of hours replacing my O2 sensor because I could not get the damn thing unscrewed. It was on there so freaking tight, but eventually I did manage to get it off 😉
 
Shouldnt be too hard. On my car it takes about 20 mins to replace, if that. Get the more expensive one, and a Chilton manual, and you'll be fine.

BTW Oxygen sensors should be changed about every 10-15k miles.
 
the one on my 91 civic was too much of a bear for me to do, and yes i tried dearly. i had my mechanic do it...

the sensor cost about $60-70 cdn i think.

OTOH, my old 92 bonneville's sensor cost $35 cdn and took about 5 minutes to do yourself.
 
Originally posted by: nan0bug
Shouldnt be too hard. On my car it takes about 20 mins to replace, if that. Get the more expensive one, and a Chilton manual, and you'll be fine.

BTW Oxygen sensors should be changed about every 10-15k miles.
Click to expand...

wtf? no.
 
Originally posted by: iamwiz82
heat is normally required to remove an O2 sensor. It will be on there pretty tight since the exhaust gas will fuse it to the pipe. As for the TPS, its on the throttle body, thats about all i can say, since every TB is different.

Here is a Jeep 4.0L TB. The TPS goes in the area at the bottomm of the picture.
Click to expand...
I tried a combination of that penetrating oil crap and also a blowtorch and found the only thing that worked for me was a very long handle to maximize torque. I don't know how much of my PB Blaster and torch helped but once I got a long enough leverage I finally got mine off quite easily.

 
Originally posted by: Pepsi90919
Originally posted by: nan0bug
Shouldnt be too hard. On my car it takes about 20 mins to replace, if that. Get the more expensive one, and a Chilton manual, and you'll be fine.

BTW Oxygen sensors should be changed about every 10-15k miles.
Click to expand...

wtf? no.
Click to expand...

Actually, I recind my earlier statement. O2 sensors should be changed every 30k-60k miles if you drive a car made before the early 90s. Anything with OBD II, about every 100k miles. Depends on the vehicle though. Replacing it every 15k miles will help with keeping your fuel economy better if you tend to put more miles on your car than the average joe in a year's time.
 
If you can get to it its not very hard. They are often very stuck and very hard to get out though. You will need an o2 socket which is basically a deep well socket with a notch cut out of the side so the wires have somewhere to go. If yours doesn't come out easy break the wire end off. Your replacing it anyway and without the wires and crap on it you can get a normal socket on it and they fit a lot tighter and don't flex like the o2 sockets. Use lots of penetrating oil and a peice of pipe can come in handy if you need some extra torque just slip it over the end of your wrench.
 
Originally posted by: Skoorb
Originally posted by: iamwiz82
heat is normally required to remove an O2 sensor. It will be on there pretty tight since the exhaust gas will fuse it to the pipe. As for the TPS, its on the throttle body, thats about all i can say, since every TB is different.

Here is a Jeep 4.0L TB. The TPS goes in the area at the bottomm of the picture.
Click to expand...
I tried a combination of that penetrating oil crap and also a blowtorch and found the only thing that worked for me was a very long handle to maximize torque. I don't know how much of my PB Blaster and torch helped but once I got a long enough leverage I finally got mine off quite easily.
Click to expand...

A little propane torch might not even get it hot enough, if that is what you used. Oxyacetylene is where it's at! :beer:😀
 
Great... now to just find the damn thing on a '90 Accord... I don't suppose it states where it is in the owner's manual ? I'm still in bed and will head out on this endeavor in a few hours. Info gathering first since I had been thinking about it since I 'woke' from sleeping with this stuff on my mind.
 
Originally posted by: FritzTheCat
TPS is throttle position sensor. Depends on location it may be easy to replace, or you may have to disassemble some thing to get at it. A chilton manual will show you how hard or easy it will be. Question: do you have a carb or fuel injection?

On the oxy sensor, see here, it looks fairly straitforward for your car:

http://www.cybrrpartspro.com/cgi-win/cal_LookupResults.exe

Link not good, see post below.
Click to expand...

i think all the 2.2L Honda's then were FI.
 
Would you NOT recommend getting the universal O2 sensor replacement for $20 ? I'm just getting this car to "work" correctly so I can trade it in during the next week.
 
Originally posted by: rh71
O2 sensor AKA "Intake Air Temperature" Sensor ? Looking at Fritz's site.
Click to expand...

Intake Air Temp measures temp. of air going into engine, Oxy sensor measures amount of oxygen in exaust.

 
Originally posted by: FritzTheCat
Originally posted by: iamwiz82
i think all the 2.2L Honda's then were FI.
Click to expand...

According to the people at the site I linked, they list info for both for that year.
Click to expand...

That site is wrong.

There are two different OEM O2 sensors, one for the LX/DX model, and one for the EX model.

EX: Bosch part number 15734

DX/LX: Bosch part number 15712
Click to expand...
 
Originally posted by: iamwiz82
Originally posted by: FritzTheCat
Originally posted by: iamwiz82
i think all the 2.2L Honda's then were FI.
Click to expand...

According to the people at the site I linked, they list info for both for that year.
Click to expand...

That site is wrong.

There are two different OEM O2 sensors, one for the LX/DX model, and one for the EX model.

EX: Bosch part number 15734

DX/LX: Bosch part number 15712
Click to expand...
Carparts.com lists these on page 2... so long as it'll work for my EX, and it's listed there, I can even buy the el-cheapo ones right ?
Click to expand...
 
Originally posted by: rh71
Originally posted by: iamwiz82
Originally posted by: FritzTheCat
Originally posted by: iamwiz82
i think all the 2.2L Honda's then were FI.
Click to expand...

According to the people at the site I linked, they list info for both for that year.
Click to expand...

That site is wrong.

There are two different OEM O2 sensors, one for the LX/DX model, and one for the EX model.

EX: Bosch part number 15734

DX/LX: Bosch part number 15712
Click to expand...
Carparts.com lists these on page 2... so long as it'll work for my EX, and it's listed there, I can even buy the el-cheapo ones right ?
Click to expand...

With the universal ones, you probably have to splice wires and there is no guarantee that the hole in your pipe is going to be the same. Usually OE parts are easier to install. Get the OE Standard SG287, or go to Autozone, Napa, any other auto store and price check.
Click to expand...
 
Originally posted by: nan0bug
Originally posted by: Pepsi90919
Originally posted by: nan0bug
Shouldnt be too hard. On my car it takes about 20 mins to replace, if that. Get the more expensive one, and a Chilton manual, and you'll be fine.

BTW Oxygen sensors should be changed about every 10-15k miles.
Click to expand...

wtf? no.
Click to expand...

Actually, I recind my earlier statement. O2 sensors should be changed every 30k-60k miles if you drive a car made before the early 90s. Anything with OBD II, about every 100k miles. Depends on the vehicle though. Replacing it every 15k miles will help with keeping your fuel economy better if you tend to put more miles on your car than the average joe in a year's time.
Click to expand...

that's still like every other oil change for some people. it's a waste of money and any gas mileage you gain will be lost in the process of buying a new sensor and labour.
 
Is there a difference between "o2 sensor" or "oxygen sensor" or most importantly, "heated oxygen sensor" ? Prices are extremely variable ...

FUGGING car... drove for 40 minutes with no problems today... gotta be an electrical/mechanical intermittent failure thing... must be O2 sensor!
 
Hey I've got a 1991 Honda Accord and I've replaced the oxygen sensor on it. Mine is an SE so I'm not sure if your sensor is in the same place but I'll tell you what was involved when I did mine. The sensor is pretty easy to get to, on my car it's located just after the steel braided expansion pipe on the exhaust pipe. It screws into the top of the pipe and has a wire coming out of the end of it which plugs into a lead running up into the engine compartment. The hard part like everyone sais is getting it out. You can heat it with a torch and then tap it to loosen it. Then once it coools down some spray some WD-40 on it or penetrating oil. I ended up sticking a pipe on the end of my wrench to get enough leverage to bust it loose. The replacement I had for it was a bosch I believe and came with a little splicing kit to connect it to the lead to the engine compartment. You just cut the wires between the old o2 sensor and the honda plug and splice the new one in there. The splicing was a pain in the butt too cause you have to make sure you've got the right wires going to the right places. I think their were four, but once you've got it spliced, then just screw it into your pipe and you're all set. Good luck. PM me if you ahve any questions.
 
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