How to eliminate CELs when removing CATS...
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Join Date: Jul 2007
Location: South Georgia/East Florida
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This trick has been around for a while. All that is needed is two sets of spark plug non-foulers, available at any auto parts store for about $5 a set.
I did this on my last truck as well as a friends and it worked perfectly. The pics are not mine, they are "borrowed".
Spark Plug Non Fouler as packaged: Purchase the size that matches up to your O2 sensor. The last time I did this, I had the clerk take an O2 sensor for my friend's Chevy out of a box to match up.
![Name: 1.jpg
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You need to increase the hole size in one of the non foulers from each kit to 1/2" using a standard drill bit:
![Name: 7.jpg
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Screwyour O2 sensor into the modified non fouler:
![Name: 9.jpg
Views: 1484
Size: 33.4 KB](https://dodgeforum.com/forum/attachments/3rd-gen-ram-faqs-diys-and-how-to-s/119003d1501467008-how-to-eliminate-cels-when-removing-cats-9.jpg)
Screw the sensor & modified non fouler into the un-modified non fouler:
![Name: 11.jpg
Views: 1503
Size: 43.2 KB](https://dodgeforum.com/forum/attachments/3rd-gen-ram-faqs-diys-and-how-to-s/119004d1501467008-how-to-eliminate-cels-when-removing-cats-11.jpg)
Install:
![Name: 12.jpg
Views: 1489
Size: 37.8 KB](https://dodgeforum.com/forum/attachments/3rd-gen-ram-faqs-diys-and-how-to-s/119005d1501467008-how-to-eliminate-cels-when-removing-cats-12.jpg)
This moves the sensor out of the path of the exhaust to where it is cleaner & cooler than in the direct path. The PCM is fooled into thinking the cat is still there, doing it's job and that everything is just fine...
123abc
I did this on my last truck as well as a friends and it worked perfectly. The pics are not mine, they are "borrowed".
Spark Plug Non Fouler as packaged: Purchase the size that matches up to your O2 sensor. The last time I did this, I had the clerk take an O2 sensor for my friend's Chevy out of a box to match up.
![Name: 1.jpg
Views: 1515
Size: 15.9 KB](https://dodgeforum.com/forum/attachments/3rd-gen-ram-faqs-diys-and-how-to-s/119001d1501467008-how-to-eliminate-cels-when-removing-cats-1.jpg)
You need to increase the hole size in one of the non foulers from each kit to 1/2" using a standard drill bit:
![Name: 7.jpg
Views: 1488
Size: 22.3 KB](https://dodgeforum.com/forum/attachments/3rd-gen-ram-faqs-diys-and-how-to-s/119002d1501467008-how-to-eliminate-cels-when-removing-cats-7.jpg)
Screwyour O2 sensor into the modified non fouler:
![Name: 9.jpg
Views: 1484
Size: 33.4 KB](https://dodgeforum.com/forum/attachments/3rd-gen-ram-faqs-diys-and-how-to-s/119003d1501467008-how-to-eliminate-cels-when-removing-cats-9.jpg)
Screw the sensor & modified non fouler into the un-modified non fouler:
![Name: 11.jpg
Views: 1503
Size: 43.2 KB](https://dodgeforum.com/forum/attachments/3rd-gen-ram-faqs-diys-and-how-to-s/119004d1501467008-how-to-eliminate-cels-when-removing-cats-11.jpg)
Install:
![Name: 12.jpg
Views: 1489
Size: 37.8 KB](https://dodgeforum.com/forum/attachments/3rd-gen-ram-faqs-diys-and-how-to-s/119005d1501467008-how-to-eliminate-cels-when-removing-cats-12.jpg)
This moves the sensor out of the path of the exhaust to where it is cleaner & cooler than in the direct path. The PCM is fooled into thinking the cat is still there, doing it's job and that everything is just fine...
123abc