O2 sensor OEM or aftermarket
It is time to change the oxygen sensor on my 95 civic and I can get a
Bosch with OE connector at less than half of what the Honda dealer wants for an OEM (Denso?). Is the Bosch a good choice or should I make the dealer rich? -- Bye, Leon |
Re: O2 sensor OEM or aftermarket
Leon wrote:
> It is time to change the oxygen sensor on my 95 civic and I can get a > Bosch with OE connector at less than half of what the Honda dealer > wants for an OEM (Denso?). Is the Bosch a good choice or should I > make the dealer rich? > > -- > Bye, > Leon > It's more expensive I know, but OEM is a MUST. Aftermarket O2 sensors are known for not working properly especially in import cars. |
Re: O2 sensor OEM or aftermarket
I am no expert, but I installed a Bosch 02 sensor in my '91 Civic Si
this past fall and have found it to work fine. The original did not die (no check engine light), but I suspected it was 'lazy' as described in the usenet archives and on various webpages. I seem to be doing a little better economy wise and my idle is more consistent and regular. I guess I'll see how long it lasts. I had around 135k miles at the time, and the sensor in the car was OEM style, maybe original. The Bosch sensor is noticeably different, it has a larger diameter body. If I understand it correctly, it seems that an 02 sensor wouldn't really have to be OEM just by its relatively simple design and function. My $0.02, Mark |
Re: O2 sensor OEM or aftermarket
Leon <Curb_Weight_69@hotmail.com> wrote in
news:ouup11pcc1blguripd1u4k7g2qioc3h06n@4ax.com: > It is time to change the oxygen sensor on my 95 civic and I can get a > Bosch with OE connector at less than half of what the Honda dealer > wants for an OEM (Denso?). Is the Bosch a good choice or should I > make the dealer rich? > The cheapies are fine, but won't last as long as OEM. -- TeGGeR® The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: O2 sensor OEM or aftermarket
"Imminent Vengeance" <me@privacy.net> wrote in message news:Xns9606B2173FB92imminentvengeance@63.220.220. 41... > Aftermarket O2 sensors > are known for not working properly especially in import cars. How well do aftermarket O2 sensors work in Japan? Better, since they are domestic? |
Re: O2 sensor OEM or aftermarket
Bosch is a good sensor, the make many of the ones in the American market.
I'd use it. Avoid the ones with the plug you wire on, while they work, there a pita to do, sorta -- Stephen W. Hansen ASE Certified Master Automobile Technician ASE Undercar Specialist "Leon" <Curb_Weight_69@hotmail.com> wrote in message news:ouup11pcc1blguripd1u4k7g2qioc3h06n@4ax.com... > It is time to change the oxygen sensor on my 95 civic and I can get a > Bosch with OE connector at less than half of what the Honda dealer > wants for an OEM (Denso?). Is the Bosch a good choice or should I > make the dealer rich? > > -- > Bye, > Leon |
Re: O2 sensor OEM or aftermarket
I had to change my o2 sensor (actually it's a Bosch) on my Honda Civic 98
DX, and let me tell you I rather have paid more to get the OEM from Honda... The fuel consumption is way off and my car is drinking like a Homer Simpson with Duff beer... no kidding.. my advice: OEM or nothing at all Jason "Steve" <hansensw@hotmail.com> wrote in message news:cwcTd.71377$Th1.58968@bgtnsc04-news.ops.worldnet.att.net... > Bosch is a good sensor, the make many of the ones in the American market. > I'd use it. Avoid the ones with the plug you wire on, while they work, > there a pita to do, sorta > > > > -- > Stephen W. Hansen > ASE Certified Master Automobile Technician > ASE Undercar Specialist > > > > > "Leon" <Curb_Weight_69@hotmail.com> wrote in message > news:ouup11pcc1blguripd1u4k7g2qioc3h06n@4ax.com... >> It is time to change the oxygen sensor on my 95 civic and I can get a >> Bosch with OE connector at less than half of what the Honda dealer >> wants for an OEM (Denso?). Is the Bosch a good choice or should I >> make the dealer rich? >> >> -- >> Bye, >> Leon > > |
Re: O2 sensor OEM or aftermarket
Jason wrote:
> I had to change my o2 sensor (actually it's a Bosch) on my Honda Civic 98 > DX, and let me tell you I rather have paid more to get the OEM from Honda... > The fuel consumption is way off and my car is drinking like a Homer Simpson > with Duff beer... no kidding.. > > my advice: OEM or nothing at all hm. good to know. the top primary heater circuit (gotta love scantools!) O2 on my 98 hatch took a dump last year and i replaced it with one from the local stealership. $220, but they were the only people to have one in stock. autozone and kragen- both out. shit- forgot to try napa :( i didnt wanna wait for mail order and run the risk of screwing the catalyst up. besides, it was stalling at idle. just had the biannual smog check, and almost all the numbers are *lower* than the last time! a couple are a tick or 2 higher, but all are below average, and wayyyy below the limit. 2 years ago, i had some numbers that were pretty near the limit. |
Re: O2 sensor OEM or aftermarket
You can Blame the o2 sensor, but what else is wrong? Regardless of what
brand they are they work on the same principal, and the numbers won't effect the economy unless dead or off. here is something I wrote concerning this subject. OK, Here it goes 02 class 101 (and catalyst efficiency) The O2 sensor generates its own voltage, and without my meter I couldn't tell you, BUT trust your scanner if it gives you a voltage reading. The first o2 sensor switches when the engines running, you watch it go low to high (sometimes .020 volts to a high of .900 volts (Milivolts??) It should click along at a steady pace, picking random numbers into the 700-900 range then low again in the 100's It is looking for Oxygen. This sensors job is to tune the car if it starts to run to rich; i.e., if too much fuel starts feeding into the cylinders, for whatever reason, the o2 sensor will start showing a higher range of numbers, and the computer will start decreasing the injector pulse to decrease the amount of fuel. Anyway, a 02 sensor can get sluggish or it can freeze at a random number then it lies to the computer that will still try to correct it. but usually this sets a 02 code... Now that basically describes the 02 sensors operation. The 2nd o2 sensor's job is to check to see if the cat converter is doing it's job (Generally, most 02 sensors are the exact same part excepting for the plug and wire length). It also switches the same as the first one but at a slower or reduced rate. If your scan tool shows the aft 02 sensor stuck, I'd try it first. If your second (aft) 02 sensor is switching at the same pace as the first o2 sensor (the numbers won't match) then chances are the cat is bad. Now if you are having a fuel consumption problem you need to look at the computer and look at the short term and long term fuel trim. This tells you if the car has been trying to adjust the fuel delivery based on all the other data it gets. If you hook up a scan tool and watch the O2 sensor work, and it's going from low to high and back again, then it's doing it's job and no other brand o2 sensor will do it any better. You can't take one part and blame everything on it without knowing how it works and works with the car. I've been to many classes on this stuff and still am trying to sort it all out, got another class on Monday and Tuesday night. We will be looking at graphing lab scopes analyzing the injector pulse width and the ignition spark in reference to trouble shooting misfires. Good thing there isn't a test.... -- Stephen W. Hansen ASE Certified Master Automobile Technician ASE Undercar Specialist "Jason" <bluebook(remove-this)@videotron.ca> wrote in message news:7XtTd.39163$6U2.446322@weber.videotron.net... >I had to change my o2 sensor (actually it's a Bosch) on my Honda Civic 98 >DX, and let me tell you I rather have paid more to get the OEM from >Honda... The fuel consumption is way off and my car is drinking like a >Homer Simpson with Duff beer... no kidding.. > > my advice: OEM or nothing at all > > Jason > > "Steve" <hansensw@hotmail.com> wrote in message > news:cwcTd.71377$Th1.58968@bgtnsc04-news.ops.worldnet.att.net... >> Bosch is a good sensor, the make many of the ones in the American market. >> I'd use it. Avoid the ones with the plug you wire on, while they work, >> there a pita to do, sorta >> >> >> >> -- >> Stephen W. Hansen >> ASE Certified Master Automobile Technician >> ASE Undercar Specialist >> >> >> >> >> "Leon" <Curb_Weight_69@hotmail.com> wrote in message >> news:ouup11pcc1blguripd1u4k7g2qioc3h06n@4ax.com... >>> It is time to change the oxygen sensor on my 95 civic and I can get a >>> Bosch with OE connector at less than half of what the Honda dealer >>> wants for an OEM (Denso?). Is the Bosch a good choice or should I >>> make the dealer rich? >>> >>> -- >>> Bye, >>> Leon >> >> > > |
Re: O2 sensor OEM or aftermarket
Steve wrote: > > You can Blame the o2 sensor, but what else is wrong? Regardless of what > brand they are they work on the same principal, and the numbers won't effect > the economy unless dead or off. here is something I wrote concerning this > subject. I would agree that the brand of O2 sensor is not responsible for the increased fuel consumption. The transfer characteristics (the relationship between oxygen content in the exhaust and the output voltage from the sensor) of O2 sensors vary widely. Some are virtually digital, i.e. the voltage is high (~900mV) when the O2 content is below a certain threshold, and low if the oxygen content is higher than the threshold. Other sensor have a fairly linear response around stoichiometric air/fuel ratio. If you get the wrong type, I can certainly see that fuel economy would be affected. |
Re: O2 sensor OEM or aftermarket
Here in Washington they don't even run a tailpipe test on the OBD II cars,
96 and later. They just scan the computer for any trigger codes and if there are none you pass. I actually prefer to see what is coming out of my pipe. "SoCalMike" <mikein562athotmail@hotmail.com> wrote in message news:1NSdnWtEEJdmAYPfRVn-tA@comcast.com... > Jason wrote: >> I had to change my o2 sensor (actually it's a Bosch) on my Honda Civic 98 >> DX, and let me tell you I rather have paid more to get the OEM from >> Honda... The fuel consumption is way off and my car is drinking like a >> Homer Simpson with Duff beer... no kidding.. >> >> my advice: OEM or nothing at all > > hm. good to know. the top primary heater circuit (gotta love scantools!) > O2 on my 98 hatch took a dump last year and i replaced it with one from > the local stealership. $220, but they were the only people to have one in > stock. autozone and kragen- both out. shit- forgot to try napa :( i didnt > wanna wait for mail order and run the risk of screwing the catalyst up. > besides, it was stalling at idle. > > just had the biannual smog check, and almost all the numbers are *lower* > than the last time! a couple are a tick or 2 higher, but all are below > average, and wayyyy below the limit. 2 years ago, i had some numbers that > were pretty near the limit. |
Re: O2 sensor OEM or aftermarket
halo2 guy wrote:
> Here in Washington they don't even run a tailpipe test on the OBD II cars, > 96 and later. They just scan the computer for any trigger codes and if > there are none you pass. I actually prefer to see what is coming out of my > pipe. here, they do everything. put the car on a dyno, plug the big smog computer into the OBD2 port, check for codes, test at 15 and 25mph, test the gas cap pressure. |
Re: O2 sensor OEM or aftermarket
An interesting note: Bosch invented the o2 sensor and the first car to use
them was Volvo in the late 70's. As long as the 02 sensor switches at a decent pace and the numbers go from high to low, there isn't much more that it can do. IF the car is running rich (high voltage) or lean (low voltage, then the o2 sensor starts hanging around those numbers then the ecu starts adjusting the injector pulse to try to correct the problem. Our shop Forman worked for Nissan for years and was "the problem solver " for northern cal (when he lived there) and Oregon in the more recent past. He told this story: A Nissan 300zx 6 cyl. drove fine around town, but when the once drove out of town at the 50 mile range the car would start to run like sh*t, as the owner said "on 3 cylinders" So my boss took it on a drive and sure enough at the 50 mile range it started running bad. He had a Nissan specific computer hooked up reading all the data, he noted that 1 bank of the car's 02 sensor was reading 2 volts! the car was trying to correct the o2 sensor by shortening down the 3 injectors pulse width until there was no fuel coming out, and the car was running on 3 cylinders. He had to disconnect that 02 sensor to get the car to run to get back to the shop. He called the higher ups at Nissan to tell them what he found and was told that it was imposable for an 02 sensor to get above 1 volt, so the sent them the computers saved dada on the test drive. -- Stephen W. Hansen ASE Certified Master Automobile Technician ASE Undercar Specialist "Randolph" <trash@junkmail.com> wrote in message news:421EC7DD.FEAC699A@junkmail.com... > > Steve wrote: >> >> You can Blame the o2 sensor, but what else is wrong? Regardless of what >> brand they are they work on the same principal, and the numbers won't >> effect >> the economy unless dead or off. here is something I wrote concerning this >> subject. > > I would agree that the brand of O2 sensor is not responsible for the > increased fuel consumption. The transfer characteristics (the > relationship between oxygen content in the exhaust and the output > voltage from the sensor) of O2 sensors vary widely. Some are virtually > digital, i.e. the voltage is high (~900mV) when the O2 content is below > a certain threshold, and low if the oxygen content is higher than the > threshold. Other sensor have a fairly linear response around > stoichiometric air/fuel ratio. If you get the wrong type, I can > certainly see that fuel economy would be affected. |
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