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  • The SMOG thread

    Current setup
    Freshly built KLZE with all stock emissions, 2600 miles, DE manifold,factory cat and HKS catback. timing set to 10 deg. also put Guarantee Pass in the tank, but I didnt read the instructions. Your suppose to put it in a full tank, drive until it needs refill, fill the tank then go for smog. I put it in the tank then went for smog.
    Here are the Emissions requirements for Fresno Area

    HC(PPM)
    15 mph= Max 87 Ave 21
    25 mph= Max 52 Ave 13

    CO%
    15 mph= Max 0.51 Ave 0.06
    25 mph= Max 0.49 Ave 0.05

    NO(PPM)
    15 mph= Max 701 Ave 150
    25 mph= Max 730 Ave 136


    Here are my test results

    HC(PPM)
    15 mph= 43
    25 mph= 21

    CO%
    15 mph=0.04
    25 mph=0.02

    NO(PPM)
    15 mph=0563
    25 mph=0653

    So to answer anyones questions...YES you can successfully get a ZE to pass smog.

    Heres a little funny story.
    when i asked the guy how the timing was he said it was at 13 deg. I know it was at 10 deg @ 750rpms and I can tell from just listening to the car it was at a much higher rpm. I asked him if he checked the rpms and he did not cause he said the factory emissions sticker does not state what rpm the timing needs to be set at and passed me anyways. I wasnt going to correct him, guess he was in a hurry.
    Last edited by Quicksilver; August 13, 2008, 12:52 AM.
    probe is sold, now i have what the probe was suppose to replace, but ironically replaced my probe
    1993 nighthawk 750
    http://s210.photobucket.com/albums/b...otor/assembly/

  • #2
    good stuff man!
    '59 VW Bus - camper - lots of work - Mango green/Seagull Grey two tone
    '05 Audi A4 1.8t Quattro 6-spd manual Ultrasport w/ mods - Arctic White / Black
    '69 VW Bug - Grey/Black two tone-1641cc
    '94 MX-6 ZE mtx w/ mods - TAZ 6 - sold / BAPOC
    '01.5 Audi A4 1.8T Quattro w/ mods - sold

    Comment


    • #3
      When I replaced the OEM cat my HC were even lower than yours, but then my car was bone stock except for the ZE at that time. Now I have the Magnaflow catback with resonator. I doubt if it would change much, but I'm no expert on emissions. What do you guys think?
      2015 Dodge Charger SXT Rallye, JAZZZND , 40K
      JAZZZIN 1994 PGT, MTX, Black/Gray leather, 200K, KLZE, Magnaflow catback SOLD to Dan [Sac]
      JAZZZN8 (2008 Mazda RX-8 GT), JAZZZN6 (2013 and 2010 Mazda 6 s GTs), first BAPOC Prez James Creasy's JAZZZN2 (1994 PGT), the infamous GRPJUCE (1994 PGT) all sold
      born in MA, grew up in MI, live in CA, just kept moving west

      Comment


      • #4
        you should be fine, i'm still running the HKS catback exhaust which is larger then stock
        probe is sold, now i have what the probe was suppose to replace, but ironically replaced my probe
        1993 nighthawk 750
        http://s210.photobucket.com/albums/b...otor/assembly/

        Comment


        • #5
          your NoX seems high, is your EGR working properly?
          -Jay
          ASE Master Certified
          ASE L1 Advanced Engine Performance Specialist
          THE RACECAR daily - '95 PGT mtx stock
          HOW TO TEST YOUR VRIS

          Comment


          • #6
            Originally posted by halfriceboy View Post
            your NoX seems high, is your EGR working properly?
            EGR is fine, its probably a combination of lower octane and higher compression pistons. i might have had a small air leak at the intake elbow.
            NOx emissions are the result of high combustion chamber temps. NOx readings go up whenever there are hot spots that exceed about 2400 degrees. Things like high compression and lean mixtures contribute to high chamber temps, as does over-advanced ignition timing
            probe is sold, now i have what the probe was suppose to replace, but ironically replaced my probe
            1993 nighthawk 750
            http://s210.photobucket.com/albums/b...otor/assembly/

            Comment


            • #7
              I passed emissions with my NOx being lower. Come to think about it, my HC's were very close to yours. The only differences between mine and yours....... I passed with my chipped ECU, KL31 IM and no type of garunteed to pass stuff in my tank. And my timing was around 11-13 degrees. I made no effort to make the car pass other than just taking it down there.
              I'm the 626 guy. DOWN FOR A REBUILD 11.8:1 comp build .020 pistons race cams MSPNP coming hopefully running by the end of the year check my YOUTUBE page

              Comment


              • #8
                Hey guys. something interesting just popped up on craigslist - a free older style SMOG gas analyzer: http://sfbay.craigslist.org/sby/zip/805091675.html

                This would be an interesting gizmo for the club to have which could be helpful for tuning things up to pass a paid SMOG test before actually going in (which can be costly).

                Just a thought.

                - SK

                Comment


                • #9
                  only problem is we don't have rollers to test the cars one.
                  probe is sold, now i have what the probe was suppose to replace, but ironically replaced my probe
                  1993 nighthawk 750
                  http://s210.photobucket.com/albums/b...otor/assembly/

                  Comment


                  • #10
                    true - but at least you can know if you're close without. Gross polluter's used to be flagged for many years with this type of machine, no rollers attached.

                    Comment


                    • #11
                      i dont know, i think getting an idle reading is different then getting a MPH reading considering there is a load on the engine during the roller test.
                      if we could get the the specifications of emissions during the period when those machines were used, we might be able to establish somewhat of an accurate baseline of polutants. then we would have to establish a range of emissions to see what cars would pass and fail. but i think this would involve a lot of testing and frankly just doesnt seem to be worth it.
                      probe is sold, now i have what the probe was suppose to replace, but ironically replaced my probe
                      1993 nighthawk 750
                      http://s210.photobucket.com/albums/b...otor/assembly/

                      Comment


                      • #12
                        The SMOG thread

                        Please READ the entire post, and follow directions carefully. If your post does not adhere to the discussion at hand it will be removed.

                        A couple of useful links for your smog woes (thanks to Jarrod and Ed for posting these some time ago):
                        http://www.firstfives.org/faq/smog/smog_faq.html
                        http://www.artsautomotive.com/thesmogstory.htm

                        Jarrod (Quicksilver) suggested a permanent smog thread where we all list our numbers and what we did to pass smog. If you failed, but later passed, list the repairs/changes you made.

                        Make sure you list your year, engine size, transmission, mileage, etc - just follow the format (copy & paste, but insert your own numbers).

                        For Visual (list failed items), look on page one of your smog report - you should see things like PCV, EGR, Vacuum lines/sensors, Fuel cap, etc - if all of them say PASS, do not list anything in that line. We just care to see what failed in the visual part.


                        For the ASM Emission Test Results section, just copy the numbers from Page 2 of your smog report. Do not include your VIN# or plate#.

                        Please put your results in bold to make it easier to see them, and put the failed numbers in red. If your MAX values vary from the ones listed, adjust them to your area's max allowable numbers.

                        This is for CALIFORNIA smog tests only! Out of state submissions will be deleted or moved.

                        If you submit a failed test but come back later to post a passed one, please edit your original post and add the new numbers and what you did to fix it. DO NOT ERASE your failed numbers, just add the new ones below your comments.


                        ------------------------
                        ------------------------
                        Year:
                        Engine size:
                        Mileage:
                        Fuel grade:
                        Transmission:
                        Ignition Timing:
                        Visual (list failed items):

                        15 MPH
                        RPM:
                        %CO2 Meas:
                        %O2 Meas:
                        HC (PPM) Meas (87 Max):
                        CO % Meas (0.51 Max):
                        NOx (PPM) Meas (701 Max):
                        Result:


                        25 MPH
                        RPM:
                        %CO2 Meas:
                        %O2 Meas:
                        HC (PPM) Meas (52 Max):
                        CO % Meas (0.49 Max):
                        NOx (PPM) Meas (730 Max):
                        Result:

                        Comments:
                        ----------------------------
                        ----------------------------




                        Example - right now I'm trying to smog my 95 PGT with a 2.0 KFZE V6 engine. Everything is 100% stock with a muffler shop OBDI catalytic converter (new), all emissions equipment in place and functional.

                        ------------------------
                        Year: 1995
                        Engine size: 2.0 V6
                        Mileage: 142,500
                        Fuel grade: 89 octane
                        Transmission: manual
                        Ignition Timing: 10* BTDC
                        Visual (list failed items): none

                        15 MPH
                        RPM: 1806
                        %CO2 Meas: 14.4
                        %O2 Meas: 0.1
                        HC (PPM) Meas (87 Max): 173
                        CO % Meas (0.51 Max): 0.76
                        NOx (PPM) Meas (701 Max): 73
                        Result: FAIL


                        25 MPH
                        RPM: 2881
                        %CO2 Meas: 14.7
                        %O2 Meas: 0.3
                        HC (PPM) Meas (52 Max): 17
                        CO % Meas (0.49 Max): 0.01
                        NOx (PPM) Meas (730 Max): 1363
                        Result: FAIL

                        Comments - I am really flabbergasted by the massive discrepancy in NOx emissions from 15 to 25 mph. The exact opposite happened with the HC emissions, so I can't draw any conclusions yet till I do a little more reading.

                        Edit - checked for codes and I came up with 25 (Fuel Pressure Solenoid), and after changing it the CEL went off. Readjusted TPS (fan method), rechecked timing (now at 8* BTDC, before it was at 10*) and tomorrow I'll try again.
                        ----------------------------
                        Last edited by Dan [Sac]; August 27, 2008, 09:03 PM.
                        90 Mazda 323 - KLZE, fender-flared, right hand drive, 2350 lb fully loaded sex machine. || Pic Thread ||- SOLD
                        93 PGT FRANKENPROBE - 10.24 @ 139.9 mph ||545 whp @ 20 psi || Timeslip || Dyno slip|| Build Thread - GONE
                        97 GTS - Rear Wheel Drive KLZE, 6-speed, 3.90 Torsen LSD, 2650 lb, daily driver! - Build Thread - GONE
                        90 Ghettocet KLiata - forever WIP

                        Comment


                        • #13
                          Year: 1995
                          Engine size:2.5L KLZE
                          Mileage: 128493
                          Fuel grade:87
                          Transmission: manual
                          Ignition Timing: 10 BTC
                          Visual (list failed items): none

                          15mph
                          RPM: 1649
                          %CO2 Meas: 14.11
                          %O2 Meas: 0.35
                          HC (PPM) Meas (87 Max): 43
                          CO % Meas (0.51 Max): 0.04
                          NOx (PPM) Meas (701 Max): 0563

                          25mph
                          RPM: 2615
                          %CO2 Meas: 14.36
                          %O2 Meas: 0.27
                          HC (PPM) Meas (52 Max): 21
                          CO % Meas (0.49 Max): 0.02
                          NOx (PPM) Meas (730 Max): 0653
                          Last edited by Quicksilver; August 27, 2008, 09:43 PM.
                          probe is sold, now i have what the probe was suppose to replace, but ironically replaced my probe
                          1993 nighthawk 750
                          http://s210.photobucket.com/albums/b...otor/assembly/

                          Comment


                          • #14
                            Additional KL03 Emissions testing procedures (if you need to troubleshoot your own car):

                            Here is some AllData info that may help others in the future:


                            EGR Solenoids Testing Procedure

                            EGR Solenoids Identification Information

                            EGR Solenoids Identification Information - this one has the vacuum ports ID'd as well

                            EGR Valve Testing Procedure

                            EGR valve sensor output data

                            KL Vacuum Diagram (everyone has this one)
                            90 Mazda 323 - KLZE, fender-flared, right hand drive, 2350 lb fully loaded sex machine. || Pic Thread ||- SOLD
                            93 PGT FRANKENPROBE - 10.24 @ 139.9 mph ||545 whp @ 20 psi || Timeslip || Dyno slip|| Build Thread - GONE
                            97 GTS - Rear Wheel Drive KLZE, 6-speed, 3.90 Torsen LSD, 2650 lb, daily driver! - Build Thread - GONE
                            90 Ghettocet KLiata - forever WIP

                            Comment


                            • #15
                              Year: 1995
                              Engine size: 2.5
                              Mileage: 120,786
                              Fuel grade: Premium
                              Transmission: Manual
                              Ignition Timing: 10 BTDC
                              Visual (list failed items): None

                              15 MPH
                              RPM: 1706
                              %CO2 Meas: 15.0
                              %O2 Meas: 0.0
                              HC (PPM) Meas (88 Max): 39
                              CO % Meas (0.52 Max): 0.02
                              NOx (PPM) Meas (704 Max): 64
                              Result: PASS


                              25 MPH
                              RPM: 1966
                              %CO2 Meas: 14.9
                              %O2 Meas: 0.0
                              HC (PPM) Meas (53 Max): 9
                              CO % Meas (0.50 Max): 0.00
                              NOx (PPM) Meas (738 Max): 36
                              Result:

                              Comments: New catalytic converter installed. Test from August 2007. The Maximum allowable numbers are slightly different.

                              Comment

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