Announcement

Collapse
No announcement yet.

mx3 v6 - emissions failed!! :@

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    mx3 v6 - emissions failed!! :@

    any one else have any issues with their mx3 failing the emissions - i was told it could be the egr valve. i filled up with additives galore and whatever else i could to pass - the rpms are WAY too low!! please help.

    #2
    What about it specifically failed?

    Comment


      #3
      Nox (ppm): standard=1026 - MY READING=1442 @ 2185 RPM
      Nox(ppm): Standard=1134 - MY READING=2767 @ 1808 RPM

      HC(ppm): standard=141 - MY READING=98 @2185RPM
      HC(ppm): standard=146 - MY READING=228 @ 1808 RPM


      my dad said it was running too much gas - the guy at the station said replace the egr valve - dad didnt disagree with that.

      the only thing i have done is replace the filter with a cone filter....

      Comment


        #4
        how old is your cat? it certainly could be that.

        -jon
        Escort GTR -- 11.87 @ 117.6 mph -- 320 HP / 325 Ft. Lbs. @ 23 PSI
        ... The first FWD BG with a Toyota E153 transmission conversion in the USA!
        Looking for BP x Toyota E153 adapter plates? PM me or contact me on Facebook: Riel Performance Parts

        Comment


          #5
          given that it is most likely the original - i'll have to look through the repair reciepts tp see if that was done by the previous owner - he kept up with the car - VERY well...and didnt let anything go unrepaired. my dad mentioned the cat as well...your comment reminded me of that - any suggestions on where to get a 'bolt'on cat - if there is such a thing... or at least a decent cat - hmm....will the one on my 93 pro 1.8 work?? its going to be a trackcar anyway....doesnt need a cat

          Comment


            #6
            direct fit cats are usually pretty expensive, $100+. universal cats can be found on ebay for like $35 in any pipe diameter (look for CATCO brand). just cut out the old one and have the universal welded in its place.

            might want to change your o2 sensor(s?) as well

            -jon
            Escort GTR -- 11.87 @ 117.6 mph -- 320 HP / 325 Ft. Lbs. @ 23 PSI
            ... The first FWD BG with a Toyota E153 transmission conversion in the USA!
            Looking for BP x Toyota E153 adapter plates? PM me or contact me on Facebook: Riel Performance Parts

            Comment


              #7
              anything to do with running too rich?

              Comment


                #8
                o2 sensor looks brand new - really! would protege cat fit my mx3?

                Comment


                  #9
                  you could probably cut it out and weld it in, but i doubt it is a direct fit due to v6 vs. i4... you could try it though. is it new or something? if not it is probably just as bad as your current one lol

                  -jon
                  Escort GTR -- 11.87 @ 117.6 mph -- 320 HP / 325 Ft. Lbs. @ 23 PSI
                  ... The first FWD BG with a Toyota E153 transmission conversion in the USA!
                  Looking for BP x Toyota E153 adapter plates? PM me or contact me on Facebook: Riel Performance Parts

                  Comment


                    #10
                    fairly new - it passed inspection...:D

                    Comment


                      #11
                      i guess you could try it... i dunno i would just get a universal for $35 and have an exhaust shop weld it on there for you. bam... done. do a tuneup too - plugs, wires, cap, rotor.

                      -jon
                      Escort GTR -- 11.87 @ 117.6 mph -- 320 HP / 325 Ft. Lbs. @ 23 PSI
                      ... The first FWD BG with a Toyota E153 transmission conversion in the USA!
                      Looking for BP x Toyota E153 adapter plates? PM me or contact me on Facebook: Riel Performance Parts

                      Comment


                        #12
                        interesting reading for those interested

                        Diagnostics for NOx failuresOVERALL
                        ·Check for causes of high combustion temperatures. Primary systems that affect NOx include:
                        -mixture control (lean)
                        -EGR
                        -ignition
                        ·Check Catalytic Converter

                        1981-86
                        Check the following:
                        O2 sensor (The signal from the O2 Sensor provides a wealth of information on how the vehicle is running.)
                        EGR valve and EGR hose
                        Ignition timing and system (advanced timing and ignition components are some of the most common problems).
                        Vacuum lines (deterioration of vacuum lines, inlet manifold seals, and become more prevalent causes with age).
                        Catalytic converter
                        Primary feedback sensor failure including, oxygen sensor, MAP/MAF, TPS, RPM, and CTS sensors.

                        1987-95
                        Check the following:
                        Use OBD, if available
                        O2 sensor
                        EGR valve and EGR hose
                        Ignition timing and system (advanced timing and ignition components are some of the most common problems)
                        Primary feedback sensor failure including, oxygen sensor, MAP/MAF, TPS, RPM, and CTS sensors
                        Vacuum lines
                        Catalytic converter

                        Diagnostics for HC failures
                        OVERALL
                        Check for cause of rich mixture, e.g. Oxygen Sensor
                        Check carburetor if equipped
                        Ignition timing and system (advanced timing and ignition components are some of the most common problems)
                        Check Lines and Hoses
                        Check catalytic converter

                        1981-86
                        Check the following:
                        Carburetor
                        O2 sensor
                        Ignition timing and system (advanced timing and ignition components are some of the most common problems)
                        Catalytic converter
                        Vacuum lines (deterioration of vacuum lines, inlet manifold seals, and become more prevalent causes with age)
                        Primary feedback sensor failure including MAP/MAF, TPS, RPM, and CTS sensors.

                        1987-95
                        Check the following:
                        Use OBD, if available
                        O2 sensor
                        Ignition timing (advanced timing and ignition components are some of the most common problems)
                        Catalytic converter
                        Primary feedback sensor failure including MAP/MAF, TPS, RPM, and CTS sensors.
                        Vacuum lines (deterioration of vacuum lines, inlet manifold seals, and become more prevalent causes with age).

                        Diagnostics for CO failures
                        OVERALL
                        Check for cause of rich mixture, e.g. Oxygen Sensor
                        Check carburetor if equipped
                        Check Lines and Hoses
                        Check catalytic converter

                        1981-86
                        Check the following:
                        Carburetor
                        O2 sensor
                        Vacuum lines (deterioration of vacuum lines, inlet manifold seals, and become more prevalent causes with age)
                        Primary feedback sensor failure including MAP/MAF, TPS, RPM, and CTS sensors.
                        Catalytic converter

                        1987-95
                        Check the following:
                        Use OBD, if available
                        O2 sensor
                        Fuel Injectors/Carburetors
                        Primary feedback sensor failure including MAP/MAF, TPS, RPM, and CTS sensors
                        Vacuum lines (deterioration of vacuum lines, inlet manifold seals, and become more prevalent causes with age).


                        Comment


                          #13
                          does the KL even have an EGR valve? the BP does not. techs at places like that are trained based on lists like that, they have no idea what equipment each vehicle actually has.

                          -jon
                          Escort GTR -- 11.87 @ 117.6 mph -- 320 HP / 325 Ft. Lbs. @ 23 PSI
                          ... The first FWD BG with a Toyota E153 transmission conversion in the USA!
                          Looking for BP x Toyota E153 adapter plates? PM me or contact me on Facebook: Riel Performance Parts

                          Comment


                            #14
                            true dat...from looking under the hood - i think it has TWO!! - i could be wrong...

                            Comment


                              #15
                              its possible, one for each cylinder bank?
                              Escort GTR -- 11.87 @ 117.6 mph -- 320 HP / 325 Ft. Lbs. @ 23 PSI
                              ... The first FWD BG with a Toyota E153 transmission conversion in the USA!
                              Looking for BP x Toyota E153 adapter plates? PM me or contact me on Facebook: Riel Performance Parts

                              Comment

                              Working...
                              X