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  1. Ford Facing Justice Department Emissions Investigation

    Ford is facing an investigation from the U.S. Justice Department. There is a criminal investigation ongoing into the automaker's emissions certification process, the company revealed in its latest Securities and Exchange Commission filings. "As previously reported, the Company has become aware...
  2. Ford Electric Supercharger Could Double as an Air Pump

    Ford has filed a patent for an electric supercharger that could double as an on-board compressor pump or vacuum pump. The patent describes an electric supercharger with a valve that would block the passageway to the engine, directing the compressed air into a separate sealed portion so it can...
  3. Keep O/R H or stay stock miidpipe?

    2005-2010 Mustang GT Tech
    For the past 3 years I always have to return to stock mid pipe for inspection (Texas). I have a JLT CAI and SCT/Bama tune. Today I was driving around town to get the O2 sensors ready and I feel the car is faster down low with the stock mid. Other than the sound, should I bother putting back the...
  4. Failing MOT emissions on P0171 + P0174 - could it be mods & lost tune?

    2005-2010 Mustang GT Tech
    Hey folks, I have a GT 2006 4.6L V8 which is currently throwing P0171 and P0174 error codes meaning system too lean on banks 1 and 2. It also failed its MOT on emissions (CO2, I believe) despite passing fine last year. The LTFT 1 & 2 are maxing out at 25% under throttle load which is throwing...
  5. Tuning Emissions and Engine Modifications Like Camshafts and Headers

    2005-2010 Mustang GT Tech
    Long time viewer, first time caller here. I've searched the forums and found some useful info but nothing specific to what I'm looking for. I'm sure its there, but maybe I'm one of those people Harry Reid was talking about that doesn't know how to internet. I have a 2006 Mustang GT and I'm...
  6. 2002 Mustang GT DTC Error Codes. Help?

    4.6L Tech
    I am experiencing a total of 8 error codes on my Mustang's computer. The codes read: P0135 - O2 Sensor Heater Circuit P0136 - O2 Sensor Circuit P0141 - O2 Sensor Heater Circuit P0155 - O2 Sensor Heater Circuit P0156 - O2 Sensor Circuit P0161 - O2 Sensor Heater Circuit P0443 - Evaporative...
  7. Help with 2006 Mustang GT Exhaust Diagnosis

    2005-2010 Mustang GT Tech
    Hi - I'm hoping the forum members can help me confirm / diagnose what type of exhaust system is presently on my 2006 Mustang GT and make some recommendations on replacement parts. I don't know the history of the car so I've been reading through the forums and trying to make some educated...
  8. Will high flow catalytic converters pass the Washington state emissions test?

    4.6L Tech
    I recently bought a 1997 mustang gt and when I took it to midas for an oil change, they told me that the catalytic converters had been hit on a speed bump most likely and were bent and touching the frame from the the previous owner. Would I still pass Washington State emissions if I replaced...
  9. 2000 mustang V6 secondary air pump

    I have a 2000 mustang V6 with automatic. I am not able to get the secondary air pump to run at startup when the engine is cold. Also my check engine light is on and the code is P0412. First of all I have replaced the air pump, CCRM, and relay attached to the air pump and I have checked all the...
  10. 1982 2.3L backfiring problems

    2.3L Talk
    So I have this Mustang and I've had it a few years and not long after I purchased it, i noticed that it backfired. Most of the backfiring occurs when you shift or any other time that you instantly get off of the gas pedal. There are a few things we think it could be: The timing, the mixture, or...
  11. Will 2011 GT without CA emissions pass a smog test?

    2011 - 2014 Mustang GT Tech
    Hi, I'm looking at buying a used 2011-2012 Mustang GT possibly online. This would mean that I would possibly get a non-CA emissions approved vehicle. I know if it doesn't have the sticker it has to have at least 7500 miles on it for CA to consider it a used car. Once it's past that mark...
  12. Boss 302 Intake Manifold with Ford Racing Tune?

    2011 - 2014 Mustang GT Tech
    Hello, I have a 2011 Mustang GT with the Ford Racing Power Upgrade (M-FR1-MGTB) that came with the car when I bought it. Part of this upgrade included a tune. I do not plan on doing much to my vehicle, but I am interested in installing the Boss 302 Intake Manifold. Every time I see "tune...
  13. New here. CEL question

    4.6L Tech
    Hello. I just joined here I have a 2000 GT 5 speed. The check engine light was on when I bought the car, I had an OBD-2 Reader and scanned the CEL. Came back with Banks 1 & 2, Sensor #2. So both downstream o2 sensors. The car has Hedman Headers, and a custom X-pipe with no catalytic converters...
  14. 1996 SVT Cobra Emissions issue. Need some help.

    SVT Cobra Tech
    I have a 1996 Mustang SVT Cobra and my check engine light came on about a month ago. The code was P1443, which is bad evap. emissions. I have already replaced the idle air control valve and the evaporative purge valve. The CEL is still on and i dont know what to do. Any Advice?
  15. Emissions Failed on my 2002 Mustang GT

    4.6L Tech
    I failed emissions testing on my 2002 gt and I was told I need a catalytic converter and an o2 senser. The emissions guy said the converter will cost me around 800 dollars but Im finding them for 200 on websites. Is there a type of converter I need to buy? The service engine light passed and...
  16. Help passing emissions in nj

    2005-2010 Mustang GT Tech
    Hello, I do not have any catalytic converters on my car and am trying to find away around have to get cats. I was wondering if there are 02 sensor simulators that will work on a 05 GT. Any advice or help is appreciated. Thanks!
  17. sct tuner with bama tunes

    2005-2010 V6 Mustang Tech
    Does anyone here live in arizona? has anyone done emissions testing while running a tune? I'm curious to know if it will pass in az.
  18. PA Emissions with modified exhaust

    2011-2014 Mustang Talk
    Today I'm getting long tube headers installed on my 95 gt along with high flow cats...emissions are coming up soon..will it pass with high flow cats? i've been hearing alot that tunes just shut off the o2 sensors and spit out a bad code and that mil eliminators just don't work. Lastly i read...
  19. 2007 GT showing emissions icon now

    2005-2010 Mustang GT Tech
    My 2007 GT just started showing the emissions icon today. I ordered the car a little over 4 years ago and have had zero problems until today. My changes to the car which could impact this issue are: reprogrammed the car computer over a year ago with a Predator tuner added an Air Raid cold air...
  20. Help passing Emissions with Strategy Tune.

    2005-2010 Mustang GT Tech
    2 years ago I used a SCT "custom" tune on my Mustang GT 2006 Premium. Runs great. But I found out that the custom tune turns off "o2 sensors", so I failed that part of the stupid Emissions test (Missouri). I noticed on my tuner today that I have 2 tune options (Custom and Strategy). I assume...