Emissions Tests Results for my Escorts.... | Ford Escort Owners Association (FEOA)

Emissions Tests Results for my Escorts....

Discussion in '2nd Gen 1991-1996 1.9L SOHC' started by denisond3, Oct 22, 2014.

  1. denisond3

    denisond3 Moderator Staff Member

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    In Virginia Counties with emissions testing, for pre OBD-II cars, they do a tailpipe sniffer test with the drive wheels on a dynamometer, at 15 mph and 25 mph.
    All of my Escorts are 2nd generation LX's, and all tests were done in Fairfax County, at gas stations local to me in zip code 22312. I gave up trying to get 'table' formatting to work in feoa.net.

    ---------------------------------For my 92LX wagon--------------------------------
    It has the auto trans, no EGR, this was in 2002, with about 170k miles on it:
    @15 mph: The HC (ppm) limit was 159, mine read 11. The CO% limit was .89, mine read .23. The NO (ppm) limit was 1242, mine read 685. Dilution 15.2

    @25 mph: The HC limit was 153, mine read 42. The CO% limit was .86, mine read .29.
    The NO limit was 1123, mine read 976. Dilution 15.0

    And in 2011 - about 20k miles after new piston rings, plugs, wires.
    @15 mph: The HC limit was 145, mine read 6. The CO% limit was .58, mine read .22 The NO limit was 1895, mine read 707. Dilution 15

    @25 mph: The HC limit was 158, mine read 5. The CO% limit was .84, mine read .18.
    The NO limit was 1842 mine read 720. Dilution 15.1

    And most recnelty in 2013, with 30k miles on the rebuilt engine.
    @15 mph: The HC limit was 145, mine read 21. The CO% limit was .58, mine read .23 The NO limit was 1895, mine read 1151. Dilution 14.5

    @25 mph: The HC limit was 158, mine read 26. The CO% limit was .84, mine read .31.
    The NO limit was 1842 mine read 1065. Diltuion 14.6

    -----------------91LX wagon -------------------------------------------------------------
    My 91LX wagon has an EGR valve, the engine was rebuilt just before the following test results in 2012:
    @15 mph: The HC limit was 145, mine read 18. The CO% limit was .58, mine read .09 The NO limit was 1895, mine read 113. Dilution 15.

    @25 mph: The HC limit was 158, mine read 20. The CO% limit was .84, mine read .07.
    The NO limit was 1842 mine read 110. Dilution 15.

    I dont have the report for 2014, but it passed. Car is in daily use by younger daughter.

    --------------------94LX wagon-----------------------------------------
    This is my only 5-speed, has the normal 1.9 engine, and was just rebuilt before the emissions test - this one in 2008. It also has an EGR valve.
    @15 mph: The HC limit was 145, mine read 25. The CO% limit was .58, mine read .22 The NO limit was 1895, mine read 98. Dilution 14.6

    @25 mph: The HC limit was 158, mine read 63. The CO% limit was .84, mine read .31.
    The NO limit was 1842 mine read 217. Dilution 14.6

    ---------------------------------------93LX hatchback---------------------------------------
    This has the automatic transmission, no EGR valve, 1.9L engine, and the emissions test was done right after rebuilding it (dropped inlet valve seat #4), in fall of 2010.
    @15 mph: The HC limit was 145, mine read 6. The CO% limit was .58, mine read .22 The NO limit was 1895, mine read 707. Dilution 14.6

    @25 mph: The HC limit was 158, mine read 5. The CO% limit was .84, mine read .18.
    The NO limit was 1842 mine read 720. Dilution 14.6


    Last summer I had occasion to call our Virginia Department of Enviromental Quality in Richmond, because the inspector insisted my 92LX needed to have an EGR - which it never did have. Based on the Vehicle VIN I gave to the friendly technician guy in Richmond, he called up a screen showing all of the emissions test results for every car I had had tested in the last 12 years, along with the results, the date/location of the test, the name of the inspectors, etc.
    The DEQ publishes a manual showing the emissions stuff each car came with - and it had a typo for the entry for the 92/93 LX Escorts; which the inspector was going by. The 'Tech' called the inspector and the problem was solved.
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  2. techman_hou

    techman_hou 1993 Emerald Green Escort Wagon Automatic

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    following in denisond3's format...

    In Texas Counties with emissions testing, for pre OBD-II cars, they do a tailpipe sniffer test with the drive wheels on a dynamometer, at 15 mph and 25 mph.
    My Escort is 2nd generation 1.9 LX, and all tests were done in Fort Bend County (Greater SW Houston), at gas stations local to me in zip code 77477.

    ---------------------------------For my 1993 1.9 SOHC LX wagon --------------------------------
    Original owner. It has the auto trans, no EGR. Use regular gas (may have ethanol in it).

    Still looking for pre 2005 records.

    In 2006 - with about 90.1k miles on it after siting for several years (5-6), maybe driven every month or two. Basically "garaged" as a second/back up vehicle since summer 2000. I may have put new plugs and wires in it this year or prior year and added fuel injector cleaner a few times, but not much else done to it emissions wise since purchase:

    @15 mph (1846RPM): The HC (ppm) Standard was 152, mine read 57. The CO% Standard was .85, mine read .38. The NOx (ppm) Standard was 1186, mine read 606. Dilution 15.38.

    @25 mph (1867RPM): The HC (ppm) Standard was 147, mine read 24. The CO% Standard was .82, mine read .28. The NOx (ppm) Standard was 1072, mine read 491. Dilution 15.38.


    In 2013 – at 90.4k miles, about 2k miles added over the seven years of pretty much sitting in driveway & driven once every few months, if it would run, before repairs that follow. In summer of 2013 new O2 sensor , new plugs, Bosch wires, fuel pump (&sending unit), fuel filter, fuel pressure regulator, fuel injectors, air filter & cleaned out fuel tank and delivery lines (replaced filler tube and tank top rubber/emission vacuum related components) and cleaned MAF. It had the original ignition module and timing belt. Here you can see the difference a fresh fuel system and plugs and wires can make on results (still had vacuum leak under throttle body & at charcole canister):

    @15 mph (1857 RPM): The HC (ppm) Standard was 152, mine read 8. The CO% Standard was .85, mine read .14. The NOx (ppm) Standard was 1186, mine read 240. Dilution 14.6


    @25 mph (1800 RPM): The HC (ppm) Standard was 147, mine read 3. The CO% Standard was .82, mine read .23. The NOx (ppm) Standard was 1072, mine read 185. Dilution 14.6.


    In 2014 – at 92.5k miles, added about 2k miles to it since 2013. Again it sat for weeks and months at a time from Oct. 2013 until summer 2014. In summer of 2014 a new timing belt, IAC valve, air filter, Motorcraft wires, fuel pump, PCV Valve and vacuum elbow & lines, new radiator (flushed engine), alternator & battery and cleaned MAF.


    @15 mph: The HC (ppm) Standard was 152, mine read 10. The CO% Standard was .85, mine read .85. The NOx (ppm) Standard was 1186, mine read 155. Dilution 8.3


    @25 mph: The HC (ppm) Standard was 147, mine read 4. The CO% Standard was .82, mine read .62. The NOx (ppm) Standard was 1072, mine read 182. Dilution 8.3.

    I am curious as to what would cause the 2014 CO% to increase 3-fold and Dilution to decrease by half (I think a high Dilution number equate to better efficiency- I may be wrong)
    denisond3 likes this.
  3. LariRudi

    LariRudi FEOA Donator

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    I'm only starting with this data; more to come.

    My FIRST Gold 1993 SW 5 spd:

    136,899 miles [me 2nd owner, technically 3rd somebody's mother to daughter to me].
    HC limit 1.50; me 0.2267
    CO limit 15.00; me 6.2902
    CO2 no limit; me 287.1560
    NOX limit 3.50; me 1.6391
    qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq

    My SECOND Gold 1993 SW 5 spd:

    122,248 miles this is THEIR data, just before I bought the car [me 3rd owner as far as I can tell].
    [I totalled this car at 146,997 miles; boo hoo].
    HC limit 1.50; actual 0.4997
    CO limit 15.00; actual 6.7385
    CO2 no limit; actual 282.2047
    NOX limit 3.50; actual 1.1538


    122,702 miles this is MY data [me 3rd owner as far as I can tell].
    HC limit 1.50; me 0.5137
    CO limit 15.00; me 6.0504
    CO2 no limit; me 345.5923
    NOX limit 3.50; me 1.0901
    qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq

    My Teal 1994 SW 5 spd [no idea WHICH owner I am:

    Purchased at 258,432 miles, NO KIDDING......
    You'll see elsewhere in these threads how I had to clean up the upholstery, and how it was "hot wired" to keep the cooling fan running 100 pct of the time, until later in it's life, I put a "switch" in passenger compartment to control WHEN the cooling fan came on; I'm a gauge watcher; it was running ALL the time even in winter and I could NOT tolerate THAT].
    HC limit 1.20; me 0.6598
    CO limit 15.00; me 8.9113
    CO2 no limit; me 281.4217
    NOX limit 3.00; me 1.0455
    qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq
    Last edited: Oct 26, 2014
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  4. LariRudi

    LariRudi FEOA Donator

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    My 2nd Gold 1993 SW 5 spd manual with 166,431 miles on it:

    today 2/16/16 emissions test; getting better with age, ha:

    HC 0.2145 with LIMIT of 1.500000
    CO 5.2182 with LIMIT of 15.00000
    CO2 265.0366 with no limit
    NOx 0.9145 with LIMIT of 3.50000

    LarryR
  5. dchawk81

    dchawk81 FEOA Member

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    So basically these cars were always pretty damned clean.
  6. ShakeZilla19

    ShakeZilla19 My name is ^^^

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    Yeah I think some older members passed the sniffer without a cat !
  7. Bindre12

    Bindre12 FEOA Member

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    With a burned exhaust valve basically running on 3 cylinders mine passed the first emissions test since I bought it and passed the second one (2 years later) with a vacuum leak, exhaust leak, and a bad O2 sensor

    Sent from my Nexus 7 using Tapatalk
  8. Joey_Twowagons

    Joey_Twowagons FEOA Member

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    One interesting thing I see from this data is that the EGR lowers NOx significantly.

    Unlike the terrible 1970s emission reduction systems, these "modern" systems seem to work for twenty years and more. And they don't hurt driveability or mileage.
    Much as I like old carbureted cars, I do appreciate electronic fuel injected cars for daily drivers.
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  9. Pizzaman5000

    Pizzaman5000 FEOA Donator

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    Our cars are supposed to be clean on these cycles, just like a TDI :)
    But god, can you imagine working on a Chrysler lean burn carb with EGR in the 70's? That would be a mind blowing and mind loosing experience as a mechanic. The timing dwell would probably drive me nuts.
  10. denisond3

    denisond3 Moderator Staff Member

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    I had the fun of driving the 1974 stock Vega my boss had. I liked the look of the car, but nothing else about it.
  11. Joey_Twowagons

    Joey_Twowagons FEOA Member

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    "But god, can you imagine working on a Chrysler lean burn carb with EGR in the 70's?"

    Kind of. I have a couple of Mazda B2200 trucks, with the last of the crude computer feedback carbs. I have spent many hours fooling with them, without the necessary dealer only special diagnostic tool.

    One is okay, the other I gave up on and switched to a Weber.
  12. twisted95

    twisted95 FEOA Donator

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    here in South Carolina we dont have the missions test . good for that if not my cars would never pass
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  13. dchawk81

    dchawk81 FEOA Member

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    Yah I'd be screwed on the Escort if I was in the next county over. Random CEL that comes and goes. Dunno how it would actually do on the sniffer but they can't have codes here.
  14. LariRudi

    LariRudi FEOA Donator

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    Update on my Teal 1994 1.9 SW:

    First, I've gotta say it's been SITTING for 18 to 24 mos due to a broken Timing Belt, so I I've been using my "new" 1993 Gold 1.9 SW during that time.

    So got it fixed recently, so had to get it tested to renew the licence plate.

    With 296,874 miles:

    HC limit 1.20; me 0.5681
    CO limit 15.00; me 6.9378
    CO2 no limit; me 328.1224
    NOX limit 3.00; me 1.4848

    Colorado has a deal, that if it's performing VERY WELL on the sniffer, it'll stop the test early; they called it something like "test concluded due to FAST PASS".... sailed right through that BUT, they failed my gas cap, so even tho tail pipe was GREAT, they failed me on the fuel cap; bought a new on, and went back the next day; ran through the test sequence AGAIN with the following results:

    With 296,934 miles:

    HC limit 1.20; me 0.4880
    CO limit 15.00; me 5.3915
    CO2 no limit; me 291.9671
    NOX limit 3.00; me 1.3792

    Again, the test cas cut short because of FAST PASS...... and of course I passed because the NEW fuel cap ALSO passed, ha.

    Interesting side notes on this and the next day in my next post.

    LarryR
    Last edited: Apr 4, 2016
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  15. LariRudi

    LariRudi FEOA Donator

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    The 1994 Teal 1.9 SW mentioned above, IN SPITE OF it's great test results, started missing like crazy on the way home from the test. Inspection of the spark plugs revealed they were in there for umpteen thousand miles; they were FAMISHED..... so, new spark plugs and now it starts like a well tuned Ford does [it had taken approx 3 secs to start before the plug change].

    I'm going to try to find my records as to how long it truly sat, being ignored of all attention, and will edit this post; reminder, I bought this with 258,432 miles on it, and it now has 296,9xx miles on it.

    LarryR

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