changing o2 senor?

[1988_5spd_lxi]

is taking out and installing the 02 senor hard to do? i need to change mine. should i go to the shop or do int myself. i have a lot of snap on tools.

[Mike's89AccordLX]

Get an O2 Sensor socket it will save you many headaches.

[Vinny]

you'll need a O2 sensor socket. You can pick them up at any local autoparts store. I'd suggest pulling your condensor fan out(the smaller fan on the rad) to give you extra room. You have an 88 LX-i so you will have 2 O2 sensors. You can buy the style that requires you to splice the old connector to the new sensor or for a little less than double the price you can get the ones that already have the connector

[Justin86]

and a breaker bar, they are cooked on there pretty good, pentrating oil also.

[Mike's89AccordLX]

Make sure when you're putting the new one in you don't put any thread lubricant on the O2 sensor b/c it will mess the readings up.

Here's the DL on O2 Sensors: If it has some sort of thread sealant or anti-seiz on it just leave it b/c the people from the manufacturor know what they are doing and if you add anything to it, it will mess the readings up. And that's something I learned in school so it's not BS.

-Mike

[1988_5spd_lxi]

[1988_5spd_lxi]

thank u all for your support

[Robs89LXi]

Hey, while on the subject, what is the purpose for 2 O2 sensors on the '89? Is one just a backup for the other, or do they read different information?

[Mike's89AccordLX]

Is there 2 on the header or one precat and one post cat? It's mainly for a more accurate reading.

[Robs89LXi]

They are side by side on the header, just before it bolts to the downpipe.

[Mike's89AccordLX]

Well I'm thinking it's just so it gets a broader testing range. But unless they are broad band O2 Sensors they are pretty much useless. I'm going to goto the junk yard and start ripping out broad band O2 sensors since they are worth quite a bit of money.

-Mike

[AZmike]

The exhaust from the 4 cylinders on an 88-89 FI car stays separated in two pipes until the exhaust goes under the engine. By using the two sensors the ECU is able to look at the exhaust from all 4 cylinders instead of just 2. Since the 86-87 exhaust manifold is 4-1 one sensor is all that is required.

[AccordAddict]

how much was it at the Junkyard? and how much would it be to reinstall a new o2 sensor cuz mine is bad too. i probably cant do it myself, whats the average price at any mechanic shops?