Cat removal
Thread Starter
|
New User
Joined: Mar 2005
Posts: 5
Likes: 0
Cat removal
I have a 2000 F150 with a 5.4 Tri. I just put Magnaflow 70 series on and it sounds great. I also took off all cat conv and now I have my Check Engine soon light on. The 4 02 sensors are still connected. Can I fix this or just ignor it and if I can fix it, how do I do it?
Thread Starter
|
New User
Joined: Mar 2005
Posts: 5
Likes: 0
Originally Posted by hatchellc08
I have a 2000 F150 with a 5.4 Tri. I just put Magnaflow 70 series on and it sounds great. I also took off all cat conv and now I have my Check Engine soon light on. The 4 02 sensors are still connected. Can I fix this or just ignor it and if I can fix it, how do I do it?
Posting Guru
Joined: May 2004
Posts: 1,214
Likes: 0
From: Indiana
You can either a) ignore the CEL soon light (but you might run into a problem when something does really happen to your engine and your Check Engine Soon light is supposed to come on but it doesn't because it is already on because of the cats being off)
or
b) get MIL eliminators as said, they tell your computer you still have cats. If you can't find them on the net just re-post and tell me if you need help, I'll find you some.
or
b) get MIL eliminators as said, they tell your computer you still have cats. If you can't find them on the net just re-post and tell me if you need help, I'll find you some.
Trending Topics
Posting Guru
Joined: Jun 2002
Posts: 1,214
Likes: 0
From: Rio Rancho USA
Ignoring the CEL can be a bad decision. The O2 sensors are responsible for telling the ECU what mixture to feed the engine. Too lean, and you will have pinging and knocking problems, both very bad for the bottom end of your engine. Too rich and you are just wasting fuel, which could mean a lot of money these days.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Senior User
Joined: Mar 2005
Posts: 250
Likes: 0
From: Redvers, SK
The rear 02 sensors do not change the fuel mixture, they just tell the computer if the cats are on and working. When a shop does an emissions test without sniffing the exhaust, they connect to the computer and check to see if the rear sensors are reading properly. These sensors are designed to read a leaner condition as compared to the front two sensors, because they expect the cats to burn some excess gas emissions. The front two sensors are the only ones that read the mixture and tell the computer to change the fuel delivery mixture, you will not notice any difference, except for the service engine light on, while the rear sensors are disconnected. Get the MIL eliminators and everything will work fine.
Thread Starter
|
New User
Joined: Mar 2005
Posts: 5
Likes: 0
MIL Eml.
Thanks for all the replys. I ordered the MIL Elm las week and installed them today and so far everything is working great. The CEL went off. Thanks again for all the replys. This a great Web Site.
Junior User
Joined: Feb 2005
Posts: 65
Likes: 0
From: Cumming, GA
I want a little bit better throttle response, but I don't want an aftermarket sound. If I remove the cats, install MIL eliminators, and keep the stock muffler will that release some of the backpressure in the exhaust pipes?
Oh, and I want to add some headers and maybe an H-pipe. How will that affect the sound if at all?
Thanks.
Oh, and I want to add some headers and maybe an H-pipe. How will that affect the sound if at all?
Thanks.
Thread Starter
|
New User
Joined: Mar 2005
Posts: 5
Likes: 0
MIL Eliminators vendor
Originally Posted by DuallyDad
where would i find MIL eliminators?