okay well its a 95 honda accord ex 5spd. well a few days ago i replaced the rack an pinion.. and we took out the o2 sensor so we can drop down the rack.. well we put it back and after installing the rack we immediately get a check engine light.. i'm like wtf.. so we play around.. disconnect battery. ecu fuse still comes on..pulled the code i'm getting code 41 and 43


41 oxygen sensor heater and 43 fuel supply system.. whats going on here.. do i need a new o2 sensor and is it alright if i buy it used from junkyard or what?

whats going on here,.

 

getting it from a junkyard might be sketchy business cause you don't know how old it is and what it's been through laying in the yard. They aren't overly expensive so I'd highly recommend getting a new one. Dont get Bosch of course...

 

user from a junkyard should be ok, or hit up like napa or advance

 

yah just spend the money for a new one...when it comes to sensors I don't like to go used, hopefully that will fix both codes....good luck

 

but what i don't get is that why does the check engine light pop up after we uninstall the o2 sensor and put it back.. honda must made a way that whenever u remove the o2 sensor.. to make the sensor go faulty.. has to be.

also is both codes related to bad o2 sensor?

 

your 02 is probably bad

 

yea u probably accidentally touched the head of the o2 sensor. if i were you i would just get a new one. i wouldn't trust o2 sensors from junkyards. i'm not sure if this affects you or not. but i remember i went to the honda dealer a while ago and they told me that my car was on emissions waranty or something. and it covers all check engine light including o2 sensors. so maybe you should check if u got that warranty on your car.

 

will driving with a bad o2 sensor prematurely wear out the engine.. or even make carbon build up?

 

I don't think it will be that hazardous. Prolonged it can, from what I know but the biggest deal is gas mileage and car performance...
It messes up your oxygen/fuel mixture

Here's a good explanation..
http://auto.howstuffworks.com/question257.htm

 

it doesn't matter if you touch the head of it. Are you sure its all connected right and in tight? I bought a used one off here from someone for like $30 and it works perfectly fine.

BTW i drove around for probably 4 months with the light on, and all it did was kill my acceleration and a little on my gas mileage. But it might have just been on its way out, mine randomly came on when i was driving.

 

yes both codes are related to the O2...get a new one and you'll be set. and make sure you reset the ECU

 

thanks guys..