Honda Car Forum


Go Back   Honda Car Forum - Accord Parts Civic Tuning Acura Racing > Discussion > Honda Technical

LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 23 Aug 2007, 10:46 am
Junior Member
Join Date: Aug 2007
Posts: 8
Default Need help with o2 sensors 99 Base Honda Prelude?

Hello everyone. I never noticed that there was this option on yahoo. Has this always been around? Well straight to the point. I have a 1999 Honda prelude base. Problem is that my primary o2 sensor has gone bad. I pulled code P0131. P0131 Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Circuit Low Voltage. So basically I need to replace my o2 sensor. I did some research and looks VERY easy. One problem though. Which o2 sensor do I buy? OEM (Original Equip Manufacturer) prices the primary o2 sensor at 275-300 dollars; while AEM (Aftermarket Equip Manufacturer) prices the primary o2 sensor at about 70-200 bucks. OEM sensors are way too expensive while AEM is much cheaper. I understand that if I buy an OEM sensor, I will just need a simple, “Out with the old, In with the New” sensor application. What about AEM brand sensors? Is there an AEM brand sensor where I will not need to splice the wires? Just a simple, “Out with the old, In with the New”. If so which brand? Boch? Denso?
Reply With Quote
  #2 (permalink)  
Old 23 Aug 2007, 10:48 am
Senior Member
Join Date: Aug 2007
Posts: 173

answer is simple......your primary o2 sensor is on the front half of the motor, on the exhaust manifold or on the downpipe, real easy to get to and swap out. as for splicing wires, no need to, because no matter which one you buy they all plug in. you will need to use an open end wrench unless you have the special socket for the sensors, which i am guessing not. autozone or oreilly's sells them cheaper, usually round $50 each. as for buying an aftermarket one from aem, not really a point because they don't add any significant power or anything like that, not usually worth the money. have fun!! but wait until the motor is cooled off, because metal expands and contracts with heat, and it would hurt alot if it's hot.
Reply With Quote
  #3 (permalink)  
Old 23 Aug 2007, 10:54 am
Junior Member
Join Date: Aug 2007
Posts: 5

The DENSO replacement oxygen sensor (#2344621) is less than $40 and to check how easy it will be to wire up, take a look at a photo of its electrical connector at:
Reply With Quote
  #4 (permalink)  
Old 23 Aug 2007, 11:00 am
Join Date: Aug 2007
Posts: 41

find the catalytic converter, upwards and downwards you'll see the sensors with wires attached, the one closest to the motor is the before, the other after.Bosch created the oxygen sensor. You can guy the honda one, it's going to be made by someone else anway, maybe bosch, desno, etc.. AEM is a good brand, it really doesn't make much of a difference, they all meet oem spec and they are all heated (thus 4 wires).since you have a honda, they will not be cheap period, although they should be.goto an autozone and buy a pair of Bosch ones. people will say they suck, blah blah blah, in reality, there's nothing wrong with them. I've used Bosch, Denso, Standard and NTM, no problems with any of them.
Reply With Quote
  #5 (permalink)  
Old 16 Oct 2007, 06:59 am
Junior Member
Join Date: Oct 2007
Posts: 1
Default Re: Need help with o2 sensors 99 Base Honda Prelude?

Hi guys. I am having the same problem on a 2000 prelude, h22 non SH.. I bought a decent scanner off a guy on craigslist due to a check engine light. Is there anything else I could do before buying and replacing the O2 sensors? Can they be cleaned or would and after market air intake have affected this in some way?
Would an aftermarket intake manifold cause other problems that I don't know about?

P0131 1 Primary HO2S Circuit Low Voltage (Sensor 1)
P0132 2 Primary HO2S Circuit Low Voltage (Sensor 2)

Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
98 Honda Civic Sensors Not Ready / will not pass inspection Brownie Honda 2 5 28 Jan 2007 04:17 pm
P0420 - Catalytic Converter and 02 Sensors - Honda Accord Honda 3 16 07 Oct 2006 03:53 am
98 Prelude Base Rear Caliper roke Honda 3 15 31 Aug 2006 10:56 pm
Re: Why don't base Honda Civics have ABS? Mista Bone Honda 3 2 10 Sep 2003 11:37 pm
Re: Why don't base Honda Civics have ABS? Larry Honda 3 0 02 Sep 2003 10:02 pm

All times are GMT -5. The time now is 03:50 pm.

Honda News | Autoblog
Powered by Yahoo Answers

Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc. is not affiliated with Honda Motor Company in any way. Honda Motor Company does not sponsor, support, or endorse in any way. Copyright/trademark/sales mark infringements are not intended or implied.