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Thread: Northern Virginia Emissions HELP

  1. #1
    Join Date
    Oct 2006
    Location
    Alexandria, VA / Ocean City, MD
    Age
    48
    Posts
    846

    Northern Virginia Emissions HELP

    I can't get my car to pass emissions here in NOVA... it won't run the evap ready check, or (most important) won't run the catalyst ready check. I've exhausted all of my options except for one. I think that my tune has the "down stream" O2 sensors turned off. Hell, I don't even know if I have them installed on the car. My custom exhaust saw to that...

    Has anyone run into a similar situation? I never had a problem in the past, but VA is now running new parameters and software...

    Thanks!

    Sent from my SM-N950U using Tapatalk


    2004 Mercury Marauder DTR:
    #320 of 982 & #1036 of 3213
    NOVI 1200-SL *Supercharged*
    492.6 HP / 430.0 ft-lbs - 09/25/08
    -Full Stainless Exhaust by Exotic (!!!LOUD!!!)
    -Flowmaster Super 44s & 4" Delete Tips - Wes
    -Richmond 4.10's
    -Ford Racing M-4033-G1 Aluminum Axle Girdle
    -Tuned by ZACK
    -Pro-Guard
    -KDW2 Tires
    1998 P-71 POLICE INTERCEPTOR "Embassy Edition"
    1985 Mustang GT 5.0 HO 4bb (my first car)
    1982 Ford Clubwagon XLT 5.0 - "Ol' Blue 82"
    1973 Ford Bronco - w/ a Fuel Injected 5.0
    --------------------------------------------------

    60' ... 1.927
    1/8 ... 7.932
    MPH ... 92.08
    1/4 ... 12.231
    MPH ... 116.29

  2. #2
    Join Date
    Oct 2006
    Location
    Alexandria, VA / Ocean City, MD
    Age
    48
    Posts
    846
    Quote Originally Posted by High-C View Post
    I can't get my car to pass emissions here in NOVA... it won't run the evap ready check, or (most important) won't run the catalyst ready check. I've exhausted all of my options except for one. I think that my tune has the "down stream" O2 sensors turned off. Hell, I don't even know if I have them installed on the car. My custom exhaust saw to that...

    Has anyone run into a similar situation? I never had a problem in the past, but VA is now running new parameters and software...

    Thanks!

    Sent from my SM-N950U using Tapatalk
    Installing a Performance Tune with an Aftermarket Tuner Tool. This changes the stock programming and calibration of the engine computer. Such changes are often made to increase power, change shift points, recalibrate the speedometer for different gear ratios or wheel sizes, change rev limiters and so on. Tuning modifications may also be made so the engine will run properly with aftermarket performance accessories such as a cold air intake, exhaust headers, low restriction converters or mufflers, performance camshafts and intake manifolds. But changing the programming may prevent some of the monitors from running. Some of these programs disable the downstream O2 sensors, which will prevent the catalyst monitor from running. The fix is to return the programming back to stock (which may also require temporarily removing some of the aftermarket performance parts, too!).

    Sent from my SM-N950U using Tapatalk


    2004 Mercury Marauder DTR:
    #320 of 982 & #1036 of 3213
    NOVI 1200-SL *Supercharged*
    492.6 HP / 430.0 ft-lbs - 09/25/08
    -Full Stainless Exhaust by Exotic (!!!LOUD!!!)
    -Flowmaster Super 44s & 4" Delete Tips - Wes
    -Richmond 4.10's
    -Ford Racing M-4033-G1 Aluminum Axle Girdle
    -Tuned by ZACK
    -Pro-Guard
    -KDW2 Tires
    1998 P-71 POLICE INTERCEPTOR "Embassy Edition"
    1985 Mustang GT 5.0 HO 4bb (my first car)
    1982 Ford Clubwagon XLT 5.0 - "Ol' Blue 82"
    1973 Ford Bronco - w/ a Fuel Injected 5.0
    --------------------------------------------------

    60' ... 1.927
    1/8 ... 7.932
    MPH ... 92.08
    1/4 ... 12.231
    MPH ... 116.29

  3. #3
    Join Date
    Sep 2002
    Location
    Cape Cod, MA
    Posts
    13,676
    Have you run the Ford Drive Cycle?

    The evap monitor has very specific parameters which must be met before it will set. For instance, it will only set if the fuel tank is between 15% and 85% (among other things). It also requires the HO2S monitor to be set first, so that's what you should concentrate on.
    The Blackbird
    Trilogy #61
    Driveway Queen

    The Spruce Goose
    2004 Grand Marquis LS Limited Edition
    Daily Driver

  4. #4
    Join Date
    Jun 2011
    Location
    Northeast OH
    Posts
    7,999
    who is your tune from?
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  5. #5
    Join Date
    Oct 2006
    Location
    Alexandria, VA / Ocean City, MD
    Age
    48
    Posts
    846
    Quote Originally Posted by RF Overlord View Post
    Have you run the Ford Drive Cycle?

    The evap monitor has very specific parameters which must be met before it will set. For instance, it will only set if the fuel tank is between 15% and 85% (among other things). It also requires the HO2S monitor to be set first, so that's what you should concentrate on.
    Yeah. Several drive cycle run throughs and a few hundred miles.

    My question is with the rear o2 sensors and my sc tune.

    Sent from my SM-N950U using Tapatalk


    2004 Mercury Marauder DTR:
    #320 of 982 & #1036 of 3213
    NOVI 1200-SL *Supercharged*
    492.6 HP / 430.0 ft-lbs - 09/25/08
    -Full Stainless Exhaust by Exotic (!!!LOUD!!!)
    -Flowmaster Super 44s & 4" Delete Tips - Wes
    -Richmond 4.10's
    -Ford Racing M-4033-G1 Aluminum Axle Girdle
    -Tuned by ZACK
    -Pro-Guard
    -KDW2 Tires
    1998 P-71 POLICE INTERCEPTOR "Embassy Edition"
    1985 Mustang GT 5.0 HO 4bb (my first car)
    1982 Ford Clubwagon XLT 5.0 - "Ol' Blue 82"
    1973 Ford Bronco - w/ a Fuel Injected 5.0
    --------------------------------------------------

    60' ... 1.927
    1/8 ... 7.932
    MPH ... 92.08
    1/4 ... 12.231
    MPH ... 116.29

  6. #6
    Join Date
    May 2009
    Location
    Moreau Island
    Posts
    12,207
    Because you are running a S/C tune you should call or PM Marty at Mo's. He can most likely get you situated.

  7. #7
    Join Date
    Nov 2014
    Location
    KC
    Age
    48
    Posts
    3,511
    His signature says tuned by ZACK, i guarantee the rear o2 sensors are shut off. Call zack or marty and get their advise, might need a emissions tune???
    The twins2.3 whipple/aluminatorVortech V-2 lots of goodies

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  8. #8
    Join Date
    Mar 2008
    Location
    Next door to my neighbor
    Age
    50
    Posts
    20,353

    Northern Virginia Emissions HELP

    If your weather is under 50* the Evap will not set. They know this and they will not require it if the temps are low enough.


    Sent from my iPhone using Tapatalk
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  9. #9
    Join Date
    Oct 2006
    Location
    Alexandria, VA / Ocean City, MD
    Age
    48
    Posts
    846
    Thanks fellas. I don't have rear 02 sensors anymore. Fairfax Co VA requires them as of the new year. Bungs and 02s and turning them back on is my only option...

    Sent from my SM-N950U using Tapatalk


    2004 Mercury Marauder DTR:
    #320 of 982 & #1036 of 3213
    NOVI 1200-SL *Supercharged*
    492.6 HP / 430.0 ft-lbs - 09/25/08
    -Full Stainless Exhaust by Exotic (!!!LOUD!!!)
    -Flowmaster Super 44s & 4" Delete Tips - Wes
    -Richmond 4.10's
    -Ford Racing M-4033-G1 Aluminum Axle Girdle
    -Tuned by ZACK
    -Pro-Guard
    -KDW2 Tires
    1998 P-71 POLICE INTERCEPTOR "Embassy Edition"
    1985 Mustang GT 5.0 HO 4bb (my first car)
    1982 Ford Clubwagon XLT 5.0 - "Ol' Blue 82"
    1973 Ford Bronco - w/ a Fuel Injected 5.0
    --------------------------------------------------

    60' ... 1.927
    1/8 ... 7.932
    MPH ... 92.08
    1/4 ... 12.231
    MPH ... 116.29

  10. #10
    Join Date
    Oct 2006
    Location
    Alexandria, VA / Ocean City, MD
    Age
    48
    Posts
    846
    Quote Originally Posted by High-C View Post
    Thanks fellas. I don't have rear 02 sensors anymore. Fairfax Co VA requires them as of the new year. Bungs and 02s and turning them back on is my only option...

    Sent from my SM-N950U using Tapatalk
    Can someone give me a number for Marty?

    Sent from my SM-N950U using Tapatalk


    2004 Mercury Marauder DTR:
    #320 of 982 & #1036 of 3213
    NOVI 1200-SL *Supercharged*
    492.6 HP / 430.0 ft-lbs - 09/25/08
    -Full Stainless Exhaust by Exotic (!!!LOUD!!!)
    -Flowmaster Super 44s & 4" Delete Tips - Wes
    -Richmond 4.10's
    -Ford Racing M-4033-G1 Aluminum Axle Girdle
    -Tuned by ZACK
    -Pro-Guard
    -KDW2 Tires
    1998 P-71 POLICE INTERCEPTOR "Embassy Edition"
    1985 Mustang GT 5.0 HO 4bb (my first car)
    1982 Ford Clubwagon XLT 5.0 - "Ol' Blue 82"
    1973 Ford Bronco - w/ a Fuel Injected 5.0
    --------------------------------------------------

    60' ... 1.927
    1/8 ... 7.932
    MPH ... 92.08
    1/4 ... 12.231
    MPH ... 116.29

  11. #11
    Join Date
    Jan 2004
    Location
    Somewhere in the N.C. Triangle
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    68
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    26,250
    Quote Originally Posted by High-C View Post
    Can someone give me a number for Marty?

    Sent from my SM-N950U using Tapatalk
    Look in the Supporting Vendors Forum.
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  12. #12
    Join Date
    Mar 2018
    Location
    Julian, North Carolina
    Age
    36
    Posts
    16
    You can also install them, with bungs for the visual portion and still have it turned off in the tune. That way you don't have to have a "working" cat. converter.

    Sent from my SM-G930P using Tapatalk

  13. #13
    Join Date
    Sep 2002
    Location
    Cape Cod, MA
    Posts
    13,676
    The problem with that scenario is that some states, like MA, for instance, can detect if the rear O2s are turned off and you'll still get a fail.
    The Blackbird
    Trilogy #61
    Driveway Queen

    The Spruce Goose
    2004 Grand Marquis LS Limited Edition
    Daily Driver

  14. #14
    Join Date
    Oct 2006
    Location
    Alexandria, VA / Ocean City, MD
    Age
    48
    Posts
    846
    Quote Originally Posted by RF Overlord View Post
    The problem with that scenario is that some states, like MA, for instance, can detect if the rear O2s are turned off and you'll still get a fail.
    Very true. I need to install the 02s and turn them back on after my emission inspection. Thanks for the help gents.

    Sent from my SM-N950U using Tapatalk


    2004 Mercury Marauder DTR:
    #320 of 982 & #1036 of 3213
    NOVI 1200-SL *Supercharged*
    492.6 HP / 430.0 ft-lbs - 09/25/08
    -Full Stainless Exhaust by Exotic (!!!LOUD!!!)
    -Flowmaster Super 44s & 4" Delete Tips - Wes
    -Richmond 4.10's
    -Ford Racing M-4033-G1 Aluminum Axle Girdle
    -Tuned by ZACK
    -Pro-Guard
    -KDW2 Tires
    1998 P-71 POLICE INTERCEPTOR "Embassy Edition"
    1985 Mustang GT 5.0 HO 4bb (my first car)
    1982 Ford Clubwagon XLT 5.0 - "Ol' Blue 82"
    1973 Ford Bronco - w/ a Fuel Injected 5.0
    --------------------------------------------------

    60' ... 1.927
    1/8 ... 7.932
    MPH ... 92.08
    1/4 ... 12.231
    MPH ... 116.29

  15. #15
    Join Date
    Jun 2011
    Location
    Northeast OH
    Posts
    7,999
    Sure glad my car is exempt having it registered with collector plates.
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

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