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  • in reply to: Running Mazda RX8 Pre-CAT o2 sensor #866002
    FireFire
    Participant

      Ok so i done some analysis and it turns out the first O2 sensor is i think an AFR Sensor instead of a oxygen sensor.

      The sensor in the middle of the CAT reports rich at 0.7 volts when idling but then fluctuates rich and lean up and down 0.2 – 0.8v when i raise RPM above idle to 2500.

      Is it possible to have a AFR sensor pre-CAT and a O2 sensor post-CAT?

      What is going on with this car….?

      in reply to: Running Mazda RX8 Pre-CAT o2 sensor #865750
      FireFire
      Participant

        That is also a point, on the scan-tool it reports no bank 1 sensor 1 as it says no data like every other like bank2 sensor X of course i am not going to have a bank 2 sensor X as i have a rotary engine and not a V type piston engine so i expect to see no data on these software parameters.
        I actually physically have one pre-cat sensor and one sensor in the centre of the cat which i presume is the post-cat although it is is directly in the centre of the cat.

        in reply to: Running Mazda RX8 Pre-CAT o2 sensor #865748
        FireFire
        Participant

          Thats what i thought but i failed emission test at the MOT today. UK Legal limit is 0.3% and i hit 0.31 on HC. It is right on the limit but over, the guy tried the test twice and both times it came out at 0.31.

          in reply to: Hey Eric best way to work underneath a car #850688
          FireFire
          Participant

            Mmmm i like wood, not in a kinky way but it is easy to work with.

            Why are these cheap steal constructions they make so expensive. I can obtain wood for free and recycle it in this way to make it work. If i can’t find a better way i think this maybe the best option, jack up on lumbers.

            You guys are great, the ideas are quality.

            in reply to: Hey Eric best way to work underneath a car #850685
            FireFire
            Participant

              wow i like that.
              Yes that would work provided 4 of them are cheap of course.

              I am guessing they are sold on eBay?

              in reply to: Hey Eric best way to work underneath a car #850682
              FireFire
              Participant

                Funny you should mention ramps. I looked at them see saw ramps they use at car showrooms.

                eBay want stupid money for them though, i have the normal kind of ramps that are cheap but my car is only 8inch of the floor so i cant get them under the wheels ramps hit the body before the wheels.

                No i did not lower the car, it came out the factory like that lol before anyone says it.

                in reply to: Modified Cars, a Technicians Point of View #837896
                FireFire
                Participant

                  Hi Eric

                  I asked this in the Youtube comments but i thought i would come on over to the discussion thread and put it hear as its bugging me.

                  I need ask you something. I am in limbo about this topic of mod but is there any benefit to it or not. I currently have a Plastic Intake Manifold. I am looking at pulling a similar intake off a different model which is an alloy intake manifold that fits. Which is better, an alloy manifold or a plastic manifold? I am getting the feeling my plastic manifold is more prone to create a vacuum leak in comparison to an alloy manifold.

                  So yes what is the take on Alloy vs Plastic inlet manifolds and changing a plastic manifold for a alloy one, is it worth it and what benefits and advantages are their. Most importantly, which is most reliable?

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