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Old 10-25-2014, 09:52 PM   #1
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Putting Cats back on 2014 GT

I deleted my cats on Thursday and have driven the car about 100 miles (no tune) and I don't like the way car sounds/smells... if I put back on my cats on Monday (probably another 40 miles driven) will I have damaged anything? And will my car continue to dump gas or will the sensors and everything work properly once more? Also will the CEL turn back off?

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Old 10-25-2014, 11:26 PM   #2
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Oh boy...

Permanent engine damage. Lol.


You will need scan tool or device to clear code. Why would you delete your cats without tune? And then decide it smells bad? Did you do a search on this before removing your cats? Your car will be fine. Wow...
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Old 10-25-2014, 11:40 PM   #3
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I knew it would smell bad but the sound isn't quite what I was expecting.... so the code won't go away by putting back in the stock Cats? If not where can can get a scan tool or device to clear it

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Old 10-26-2014, 12:21 AM   #4
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If you put the cats back on and drive the car for a while the CEL will turn off once the sensors go through a cycle and realize that the cats are back on and it is in fact reading within the range.

You can also try disconnecting the battery to reset the computer. Or any auto parts store can read the code but some of them can be weird about clearing codes. Although you can tell them you had replaced the cats and they will probable clear it for you
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Old 10-26-2014, 06:48 PM   #5
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Guessing Google doesn't work in Africa.
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Old 10-27-2014, 04:05 AM   #6
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Auto parts stores can be iffy when clearing the codes, some will and some won't. Another option is to buy your own OBD II/CAN tool and clear the code yourself. I bought one for around $100 and have found it useful in both of my cars.
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Old 10-27-2014, 03:20 PM   #7
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To be honest I enjoy the smell of no cats.
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Old 10-27-2014, 04:27 PM   #8
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Try it with e85 hahah

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Old 10-28-2014, 05:56 PM   #9
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Took into the shop today, cats back on... The shop reset the ECU for me so the lights off too... Lesson learned
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Old 10-29-2014, 07:05 AM   #10
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CEL/MIL Light

If you replaced the cats and everything is still right they should clear them selves very quickly. Most sensors (MAP, MAF, EGR) will clear themselves once the computers sees the correct values.
It s only the evap system codes that take a long time to clear, as it doesn't check every key cycle, usually every 5 - 6 but can take a month to clear itself.
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