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    #1

    Sensor Questions

    So lets see if I have this straight, after doing a search I am confused here, IE. there is a sensor for the gauge, a sensor the fan and another for the ecu, I am guessing that one for the ECU is the one that will affect gas milage and general running. I am about to go for the emissions testing, and I intend to replace the Coolant sensor and the 02 sensor. I don,t want to take any chances even though the 323 is running super. The fan comes on as needed, and the temperature gauge always runs dead center on the gauge.

    Pat.
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    #2
    Correct, correct annnnnnnnnd correct!

    PS: Personally if your mileage is still good (above 30mpg) and everything runs great, don't touch the sensors.
    **SOLD** 93 EGT with more suspension mods then your average riced out civic's # of decals + useless "bling/style/culture" mods! **SOLD**
    95 EGT New beater! And gawd damnit shes NOT pink!

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      #3
      the one for the ecu is on the side of the cyl head close to the intake manifold
      the one in the thermostat housing is for the fan
      the one in the front of the cyl head is for the temp gauge

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        #4
        i think some sensor is bad, i get horrible mileage around town but excellent on the highway, wtf is up with that. if its the O2 sensor then whop de do, im gettin a new one friday lol
        1994 Escort LX Wagon
        2013 Hyundai Veloster Turbo
        91 Infiniti M30 Convertible - Traded in for Veloster
        91 EGT - Junked May 2012

        "Going to church doesn't make you a Christian like standing in a garage doesn't make you a car."

        "I usually downshift when I'm near a Prius so they can hear me hurting the environment"

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          #5
          Thanks guys for the quick answers. now I am no longer confused.LOL

          Pat.
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            #6
            Originally posted by MATT91GT View Post
            i think some sensor is bad, i get horrible mileage around town but excellent on the highway, wtf is up with that. if its the O2 sensor then whop de do, im gettin a new one friday lol
            Possibly. Whats horrible? I get 24-25 city OR highway on my 93 with all new sensors, etc!
            **SOLD** 93 EGT with more suspension mods then your average riced out civic's # of decals + useless "bling/style/culture" mods! **SOLD**
            95 EGT New beater! And gawd damnit shes NOT pink!

            Comment

              #7
              I'm geting 22-23 mpg city/hwy. I drive the car to and from work only and its 13 mile. 6 city and 7 hwy 1 way. The O2 is new,thermostate housing fan sensor is new,the one on the side close to the thermostat housing is new. Could that last senmsor make the milege drop? My old pro was getting 25-26 city and 33 hwy. the last trip I took was 27-28mpg hwy in this one.
              1993 Protege LX-Midnight's shadow SOLD
              1996 Honda CBR600-Wrecked. Damn Honda crippled me
              2002 mazda MPV-family truckster SOLD
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              Originally posted by jay
              .....they totally underestimated the number of gearheads such as myself that have families but refuse to grow the hell up and stop playing with cars, or that otherwise see the utility of having 4 doors. Obviously I ain't alone, as there are a helluva lotta sti and evo here. Bueler? Beuler? Mazda? Mazda?

              Comment

                #8
                Originally posted by Turpro View Post
                I'm geting 22-23 mpg city/hwy. I drive the car to and from work only and its 13 mile. 6 city and 7 hwy 1 way. The O2 is new,thermostate housing fan sensor is new,the one on the side close to the thermostat housing is new. Could that last senmsor make the milege drop? My old pro was getting 25-26 city and 33 hwy. the last trip I took was 27-28mpg hwy in this one.
                Well the other one your referring to is the gauge isn't it? My 93 also gets WAYYYY better MPG with more mods + more miles...
                **SOLD** 93 EGT with more suspension mods then your average riced out civic's # of decals + useless "bling/style/culture" mods! **SOLD**
                95 EGT New beater! And gawd damnit shes NOT pink!

                Comment

                  #9
                  bumping this for curiousity. my temp gauge doesn't work anymore but my fan and crap come on when they're supposed to.

                  do i have to replace that little ground clip sensor that's threaded at the FRONT of the cylinder head just under the thermostat housing??

                  also wtf is it called? this is the part i need to be mazda if its a mazda bp...right?

                  JACK.
                  -Jack

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                    #10
                    it needs to be mazda if you have a mazda dash actually
                    Posted By: Wheresthericego

                    The BP crank is made out of invincible.
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                      #11
                      Originally posted by Turpro View Post
                      I'm geting 22-23 mpg city/hwy.
                      You may need to "clean" your MAF - if you have one. Do you see oil (or oil deposits) in the intake/TB?

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