Long Tube Headers and Engine Light

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Herb Belin

Member
Joined
Dec 16, 2014
Posts
8
Reaction score
10
I have a set of SW LT Headers and Cats installed on a 2014 Raptor with a Whipple Supercharger. The Truck had run 3000 miles with this set up with no codes and no CEL. I recently failed the trucks first emissions inspection with both the CATs and O2 sensors showing "Inc" but no codes. I checked with Whipple and found out that their Tune has the rear O2s turned OFF. This prevents a CEL but causes a Failure to pass inspection. Whipple provided me with a new tune with O2's back on. O2 Spacers were installed on both rear O2s. After a day or 2 of driving a check with an OBD Reader showed all Inc's to now read "OK" and truck passed inspection without a hitch.

I am very happy with the SW LT's even though the installation was very difficult. The SW Cats are another story all together. They are not up to the job that the supercharged 6.2 puts to them. After 3000 miles they were making a tremendous amount of noise (bucket of marbles) and on inspection showed that their cores were starting to come apart. On the advice of a local Racing Shop I had a set of the just released Dynatech Super Cats installed. They are bigger and look a lot stronger than the SW's. Bottom line is Much quitter, No CEL's and passes Inspection (MA). 1000 miles and no problems......
 

MTF

FRF Addict
Joined
Nov 27, 2010
Posts
5,429
Reaction score
2,361
Location
Celebration, Florida
Herb, you can get the Whipple LT Header Tune with rear O2 on or off.
All you need to to is tell them or ask what you want and what your doing.
 

MTF

FRF Addict
Joined
Nov 27, 2010
Posts
5,429
Reaction score
2,361
Location
Celebration, Florida
There's quite a few Whippled Raptor that left the stock cats on and had Whipple leave the rear O2s on and haven't had any issues.

The Stock cat are 600 cel count were as the SW high-flow are only 200 cel.
That is why there's and issue.

What is the cel count of the ones your running?
 
Last edited:

Yukon Joe

FRF Addict
Joined
Nov 16, 2011
Posts
18,386
Reaction score
11,628
Location
Trafford, PA
I have a set of SW LT Headers and Cats installed on a 2014 Raptor with a Whipple Supercharger. The Truck had run 3000 miles with this set up with no codes and no CEL. I recently failed the trucks first emissions inspection with both the CATs and O2 sensors showing "Inc" but no codes. I checked with Whipple and found out that their Tune has the rear O2s turned OFF. This prevents a CEL but causes a Failure to pass inspection. Whipple provided me with a new tune with O2's back on. O2 Spacers were installed on both rear O2s. After a day or 2 of driving a check with an OBD Reader showed all Inc's to now read "OK" and truck passed inspection without a hitch.

I am very happy with the SW LT's even though the installation was very difficult. The SW Cats are another story all together. They are not up to the job that the supercharged 6.2 puts to them. After 3000 miles they were making a tremendous amount of noise (bucket of marbles) and on inspection showed that their cores were starting to come apart. On the advice of a local Racing Shop I had a set of the just released Dynatech Super Cats installed. They are bigger and look a lot stronger than the SW's. Bottom line is Much quitter, No CEL's and passes Inspection (MA). 1000 miles and no problems......
Thanks for sharing.

Where did you find stainless O2 sensor spacers?


Donate to Avery and be entered into a raffle for an awesome prize for your Raptor.
@The Car Stereo Company
subs Rock
http://www.fordraptorforum.com/showthread.php?p=799897
 

Herb Belin

Member
Joined
Dec 16, 2014
Posts
8
Reaction score
10
Stainless Spacers

Thanks for sharing.

Where did you find stainless O2 sensor spacers?


Donate to Avery and be entered into a raffle for an awesome prize for your Raptor.
@The Car Stereo Company
subs Rock
November Pay It Forward Event! - Page 105 - FORD RAPTOR FORUM - Ford SVT Raptor Forums - Ford Raptor

Do a web search for Vibrant 11619-J Spacer. They are SS.. Herb

---------- Post added at 08:31 AM ---------- Previous post was at 08:26 AM ----------

There's quite a few Whippled Raptor that left the stock cats on and had Whipple leave the rear O2s on and haven't had any issues.

The Stock cat are 600 cel count were as the SW high-flow are only 200 cel.
That is why there's and issue.

What is the cel count of the ones your running?

I think the CEL Issue is caused by the Long Tube Headers more than the Whipple or the Cats. In any event that problem has not appeared since the spacers were installed.

Herb
 

MTF

FRF Addict
Joined
Nov 27, 2010
Posts
5,429
Reaction score
2,361
Location
Celebration, Florida
Sorry, I knew I should have spelled Cell count.
Not CEL as in error.

Couple of things happen to the rear O2 sensors when you don't have enough Cell count in the cats.
One, of course is high toxic gasses.
Two, the time interval the O2s heat up will not fall into specs set in the emission control software. Usually they heat too fast with less Cells.
And it also keeps checking the O2 temps as you throttle.
 
Last edited:

Yukon Joe

FRF Addict
Joined
Nov 16, 2011
Posts
18,386
Reaction score
11,628
Location
Trafford, PA
I got a smog tune from 5* and added the spark plug spacers from auto zone. I was in a hurry to get this done before I left for Christmas so I could get the truck inspected while I was in Pittsburgh. The check engine light still came on. Bank 2 sensor 2 stuck lean. So I never got the inspection done. I now have some time to correct this issue before heading back to Pittsburgh next time.

I now have the Vibrant stainless steel O2 sensor spacers to install. My question is which flow insert did you guys use? They come with three different options for port sizes.

Thank You for your donations to Avery. We hit our goal!

Yukon Joe
Snoball 3
Delta Lead
www.runraptorrun.com
 
Top