When to change oxygen sensors? - FirebirdV6.com/CamaroV6.com Message Board

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  • #16
    Never settle for lesser 02 sensors. GET AC DELCO. you can get them at a good price at http://www.gmpartsdirect.com Sure they are expensive. but think about it. If your gas milage is bad then that will cost A LOT more then replacing your 02's every few years
    1996 Silver camaro Z28. M6,<br />12 bolt, 4.11\'s, posi, Rear cover, Spec stage 2, loudmouth, more <a href=\"http://home.mainstreamtopics.com/?index=3&module=1\" target=\"_blank\">http://home.mainstreamtopics.com/?index=3&module=1</a> &lt;Mods, Pics & more <a href=\"http://home.mainstreamtopics.com/?index=3&module=2\" target=\"_blank\">http://home.mainstreamtopics.com/?index=3&module=2</a> &lt;Fbody Tech Articals

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    • #17
      Bosch doesn't make the O2 sensors GM puts out?

      I know NGK makes the AC Delco Iridium plugs I installed in my car.

      Originally posted by joecool:
      I found this cool wholesale place. They're cheap there. Bosch GM type o2 sensor. http://www.autobarn.net/bosoxsen.html

      Is 2 for 31.90 a good price?
      Those are for the old OBD I controlled cars, those are 1 wire sensors. Hence my previous post about the good ol days when they were cheap to replace. We have 3 wire O2 sensors on OBD II cars (95 3800's and all 96+).
      -1999 Camaro Coupe 3800 Series II V6 A4 - SOLD<br />-1998 Pontiac Grand Prix GTP coupe

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      • #18
        gmparts direct is expensive. 4 o2 sensors is $290

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        • #19
          You on;y need 2 02 sensors. The 2 fronts is it. Rears have no effect on the cars performance. Like I said. spend a little over 100 on 02's every few years or even more on gas cause it's getting eaten up from poor performance. a CA test done on 02's stated that 75% of all the cars tested had 02's that were efecting fuel milage.
          1996 Silver camaro Z28. M6,<br />12 bolt, 4.11\'s, posi, Rear cover, Spec stage 2, loudmouth, more <a href=\"http://home.mainstreamtopics.com/?index=3&module=1\" target=\"_blank\">http://home.mainstreamtopics.com/?index=3&module=1</a> &lt;Mods, Pics & more <a href=\"http://home.mainstreamtopics.com/?index=3&module=2\" target=\"_blank\">http://home.mainstreamtopics.com/?index=3&module=2</a> &lt;Fbody Tech Articals

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          • #20
            so the one after the cat you can just leave alone?

            However, would that be the most likely culprit of the 1420 code?
            -1999 Camaro Coupe 3800 Series II V6 A4 - SOLD<br />-1998 Pontiac Grand Prix GTP coupe

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            • #21
              Originally posted by HBHRacing:
              You on;y need 2 02 sensors. The 2 fronts is it. Rears have no effect on the cars performance. Like I said. spend a little over 100 on 02's every few years or even more on gas cause it's getting eaten up from poor performance. a CA test done on 02's stated that 75% of all the cars tested had 02's that were efecting fuel milage.
              the 97 and under cars have 4, yo have to replace the one in the ypipe before the cat too
              www.turbov6camaro.com
              1997 3800 Series II Camaro
              4600 Stall for my ride to the mall :chug:
              7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
              11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

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              • #22
                I get around 30 mpg now that I recently changed my spark plugs, fuel filter, and filled up my tires. Would the new o2 sensors give me even better mileage??? I would really like to see 35-40 MPG.

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                • #23
                  Originally posted by joecool:
                  35-40 MPG.
                  [img]graemlins/rofl.gif[/img] [img]graemlins/rofl.gif[/img] [img]graemlins/rofl.gif[/img] only time that goign to happen on the highway when i got 36
                  www.turbov6camaro.com
                  1997 3800 Series II Camaro
                  4600 Stall for my ride to the mall :chug:
                  7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
                  11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

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                  • #24
                    how much do you guys get with the 3.4s? mine is eating so much gas, i think a v8 is more economic. my 02 sensors are definetely burnt up (184k miles)... i have a high flow cat, so i cant put the sensor on that. what do i need to change to get decent gas mileage on my car? with todays gas prices, you cant afford not to spend $300 on sensors, you'll get that money back in a month or two. btw.. i think my car is getting like 15mpg, at most. i failed emissions, (they sniffed a corolla, so i passed [img]smile.gif[/img] ). my engine was rebuilt 3k miles ago, so compression shouldn't be a problem.

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                    • #25
                      Originally posted by joecool:
                      I get around 30 mpg now that I recently changed my spark plugs, fuel filter, and filled up my tires. Would the new o2 sensors give me even better mileage??? I would really like to see 35-40 MPG.
                      You need a Civic DX 5 speed and drive it like a grandma.

                      My old 3.4 got worse gas mileage than my 3800 does, like 17-18mpg city on a GOOD day... I think its the nature of the beast, change the O2 sensors and go from there.
                      -1999 Camaro Coupe 3800 Series II V6 A4 - SOLD<br />-1998 Pontiac Grand Prix GTP coupe

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                      • #26
                        Originally posted by c a m a r o:
                        how much do you guys get with the 3.4s? mine is eating so much gas, i think a v8 is more economic. my 02 sensors are definetely burnt up (184k miles)... i have a high flow cat, so i cant put the sensor on that. what do i need to change to get decent gas mileage on my car? with todays gas prices, you cant afford not to spend $300 on sensors, you'll get that money back in a month or two. btw.. i think my car is getting like 15mpg, at most. i failed emissions, (they sniffed a corolla, so i passed [img]smile.gif[/img] ). my engine was rebuilt 3k miles ago, so compression shouldn't be a problem.
                        I can get about 350 miles on a tank of fuel. I only run the good stuff. I just replaced both of my o2's and they were 20$ a piece @ auto zone.
                        All black 94 3.4L Camaro <br />5 speed with t-tops<br />Mods-<br />Cold air intake, Duels no cat<br />Iroc rims, Manual fan switch

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                        • #27
                          So $20 a piece eh??? Where is your Autozone??

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                          • #28
                            Originally posted by joecool:
                            So $20 a piece eh??? Where is your Autozone??
                            he probably means for the 3.4 engine

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                            • #29
                              just got the o2 sensors, $53 for the pair. now that i look at it the passenger side o2 sensor is kind of hard to get at. any tips on gettin the o2 sensors out easier? on the 3.4l, i dont know if its any different from the 3.8.

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                              • #30
                                Yes it was for a 94 3.4L. I'm not sure but dosen't the 3.8L 's have a two wire o2?
                                All black 94 3.4L Camaro <br />5 speed with t-tops<br />Mods-<br />Cold air intake, Duels no cat<br />Iroc rims, Manual fan switch

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