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yact: TRIUMPH!

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okay, I bought the Bosch from NAPA (94 bucks with tax), it has the right connector so I don't have to splice-and-solder. but now I have to remove the old one which is a complete bit<h ! godamn, any tips on taking the old one out????
 
Try cutting the wire to the old O2 sensor and fitting a deep socket over it...then get a couple lengths of hollow threaded steel pipe that slips over the handle of the wrench. This will act as a huge breaker bar and should pull it out.

This is assuming you have enough room to get a wrench on it (with room to turn it).

If not, spray it down with PB Blaster and let it sit overnight. That may loosen it up enough to get it out with a shorter wrench.
 
Originally posted by: Black88GTA
This is assuming you have enough room to get a wrench on it (with room to turn it).
Click to expand...

yeah, that's the problem, I just bought a 7/8 open end wrench (which is about 12 inches long) and I can just fit that thing onto the sensor. there's no room I can effectively pull or push the wrench at all. I even jack the car up a little. I think it would be easier if I could lift the car up, but I don't have the means. I wonder how shops remove stubborn nuts and bolts...

 
Originally posted by: andylawcc
Originally posted by: Black88GTA
This is assuming you have enough room to get a wrench on it (with room to turn it).
Click to expand...

yeah, that's the problem, I just bought a 7/8 open end wrench (which is about 12 inches long) and I can just fit that thing onto the sensor. there's no room I can effectively pull or push the wrench at all. I even jack the car up a little. I think it would be easier if I could lift the car up, but I don't have the means. I wonder how shops remove stubborn nuts and bolts...
Click to expand...

Impact gun or leverage..

Sears has a 1 1/2ton aluminum jack on sale for 88 bucks..not sure if it's nationwide, but that might help 🙂

FWIW, the 4afe/7afe was in 93-97 Corollas/Prisms..'98s have the 1ZZFE.
 
Don't they make wrenches that are specifically made for situations like getting off O2 sensors?
 
If you weren't on the wrong side of the country, I'd say bring it over and I'll give it a shot..

You may want to call a shop and ask them what it'll cost just to replace it if you supply the part. It shouldn't be too expensive..
 
Originally posted by: CadetLee
If you weren't on the wrong side of the country, I'd say bring it over and I'll give it a shot..

You may want to call a shop and ask them what it'll cost just to replace it if you supply the part. It shouldn't be too expensive..
Click to expand...

Shops have a minimum charge usually.

The tool to do it(either a crowfoot or o2 remover) is ~$10. You should always have tools.
 
Get a jack and 2 jack stands. You don't get under a car without jack stands. A 2 ton jack can be had for $15, and a set of 3 ton stands for $15 easy. That will give you all the room you need.

O2 sensors are notorious for becoming stuck. Hell, so is anything in the exaust. Use some penatrating oil to assist with removal. WD-40 is not what I mean. In addition, you may have to apply some red wrench to remove it. Use it on the fitting, not the sensor. The fitting will then expand, allowing you to remove the sensor.

If your clearance is limited, use a crows foot, which you probably don't have. You can use a stubby wrench, and attach another wrench to the open end at a slight angle (usually only slightly more than the ofset of the box end will work) for more leverage while allowing greater angularity.
 
Originally posted by: QuitBanningMe
Originally posted by: CadetLee
If you weren't on the wrong side of the country, I'd say bring it over and I'll give it a shot..

You may want to call a shop and ask them what it'll cost just to replace it if you supply the part. It shouldn't be too expensive..
Click to expand...

Shops have a minimum charge usually.

The tool to do it(either a crowfoot or o2 remover) is ~$10. You should always have tools.
Click to expand...

Sears is running their 'best price of the season' sale now.. 🙂
 
Soak it overnight w/penetrating oil, as others have said, cut the lead off (not too short, you'll have to splice it), warm the car to operating temp., and use a 6 point deep well (1/2" drive) to remove it. Pray you have threads left in the manifold when it comes out. Jack the car and use jack stands if you have to get under it.
 
I've had luck getting a facotry O2 sensor off a ten year old truck that had spent half its life on the salt/ice streets in Illinois. I jacked it up a bit, cut off the lead, and went at it from both the wheel well and from the hood side because I had no clearance. 1/16th turns until it was loose enough to get off...
 
If you are still getting a light you may need to reset the code. You can generally do this by disconnecting the battery for 10 minutes.
 
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