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2002 Mustang GT Emissions Fail! HELP!

Old 05-17-2019, 05:34 PM
  #1  
GSXRIntensity
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Exclamation 2002 Mustang GT Emissions Fail! HELP!

Hi everyone. I am looking for advise on how to pass emissions in Chicago, IL with my '02 GT. It was modified and tuned by Sutton HP which is no longer in business. I have Bassani mid-length headers, a Bassani X-pipe w/no cats, and a Magnaflow cat-back. The passed emissions successfully for years post modifications, but apparently the state of IL has made the testing more strict and now no matter what I do it won't pass. What can I do in order to pass emissions with my car? Please help....
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Old 05-19-2019, 11:41 AM
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1slow67
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Ether pay off a shop to give you a sticker, look into getting stock parts to put on the car for inspection purposes, or move to a state that doesn't require emissions testing.
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Old 05-19-2019, 11:45 AM
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99GTvert
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Did they explain why it failed?
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Old 05-19-2019, 02:34 PM
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08'MustangDude
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Change the oil, idle it, change the oil again, get it tested immediately. There is also an
additive you can buy a Walmart that says it guarantees to pass emissions, or your
money back.
https://www.walmart.com/ip/CRC-05063...12-oz/19853345

Cars can fail if there is gas-saturated oil in the pan. I always take mine in after a
fresh oil change.

There are other products:
https://www.walmart.com/ip/STP-Emiss...unces/55350440

https://www.walmart.com/ip/Emissions...tion/123437624
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Old 05-20-2019, 01:47 PM
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Derf00
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It all depends why it failed. What is new about the inspection process? They dyno it, they plug in an OBDII scanner? What?

Dyno with a sniffer could be like MustangDude described, OBDII scanner could be sensor related (O2 sensors turned off or unplugged...etc.
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