hi I have a 2011 Panamera turbo

have a Fvd tune ipd y pipe forged diverter valves miltek catback exhaust bmc filters no cel everything runs good


but I recently put catless downpipes with anti foulers

car runs great noticed a lot faster turbo spool

but cel comes on about 50 miles to 100 miles of normal low rpm driving

I used one small scanner does not show the fault code
I use my big scanner it shows dme 2 weird fault codes I can not identify picture attached limit exceeded I never seen this code or info before

is it b because the anti foulers not working? I am using the short anti foulers I was wondering maybe need the J anti foulers? or needs retune ?
but if the anti foulers not working wouldn't a cat code show as fault ?


please if anyone can help that would be great thanks!

 

 

What downpipe do you have??? I'm getting this downpipe setup very soon and if it starts throwing codes I'll be pissed. Maybe rhonda@fvd can help out with your situation.
Good luck and I'll be on the lookout for this one

 

Get the icarsoft por scan device it will tell you exactly what codes you are throwing. I have a similar set up to you with cat less pipes W FVD tune and I get CEL for cat below threshold.

 

Ya I have one. So it's all good. I'm just pissed that fvd says no CEL If you get our tune. Whether it's an emissions thing or not. I'm just a bit **** when it comes to cel's. Don't like f...cking with them and don't like always having to clear them. It would be different if fvd said you'd get CEL periodically. If that was the case I wouldn't have bought it. I may have just went with a sports cat.

We shall see!!! Thanks for the reply. Have you ever asked fvd to adjust the tune?

 

Did you get an updated FVD software file for the cat bypass pipes? Also, when you are referring to anti foulers, what exactly are those? I just want to make sure they are not post cat O2 sensor extensions as our software does not work with post cat O2 sensor extensions.

Would love to help but just need a bit more info.

Thanks

 

Had those exact codes! After down pipes, contacted FVD and it’s fixed after the second flash I had to apply.

you do not need o2 cheats as the flash counters the rear sensors. Contact FVD and remove the o2 cheats

 

awesome thanks. Still waiting. Probably a couple more weeks.

 

thanks I am about to retune my car with fVD again and see what happens

 

did you remove the extenders

 

send them that picture too, that’s what I did and got the tune that fixed it.

 

i already did thanks!

 

Let us know when you install the revised tune and how it pans out!!!

 

so far drove the 970 for about 130 miles
a few wot
and few cold starts and normal driving stop and go
no cels.

fvd rhonda has wonderful service as usual

after the 2nd tune for catless the car overall power band feels more smooth


thanks !!!

 

Removing the cat has been shown to give you about 2% more horsepower. So big props for gaining about 10 horse. But hey, it sounds cool, right? Meanwhile, they announced that Greenland's ice sheet has melted beyond the point of no return.

Put the cats back on and then get the car tuned. You can see exactly the same horsepower output with cats and a good tune