Before everyone jumps on my *** about this, I know most (if not all) people particularly love the crackles and pops of this car... I have my moments where I love them as well but I do find them a bit loud and obnoxious on my R.

I really do love the sound of the engine & exhaust but sometimes cringe when I let off the throttle with the valves open and let off the fireworks.

Is there any way to program out or make an ECU mod to get rid of that overrun? I've thought about exhaust mods but that won't end up giving me the solution I'm looking for as this isn't an exhaust issue.

I'd appreciate any help on this!

Thank You!

 

You bought the wrong car junior.


You'd probably have to find a tuning shop that specializes in F-types/Jaguars.

 

Are you using the exhaust button to minimize this noise? Mine runs pretty quite even in dynamic and sport with exhaust valve button set for closed valves.

 

The sound issue, like many others is a personal thing. I too don't particularly enjoy the raspy overrun of the V8. I personally feel that Jag got it just right with the burble and popping on the V6. Keeping the muffler valves closed should resolve your problem if they are working. But if you enjoy the loudness with them open, and just don't want as much overrun, Velocity AP or Eurotoys should be able to help you with a modified tune (and get you some extra power at the same time) as Raul has suggested.

 

I appreciate the comments all.

I do like the loudness of valves open just don't want as much overrun as Unhinged mentioned. I'll try to connect with Velocity AP & Eurotoys to see if they are able to assist.

 

Maybe just get the K309 (O2 sensor) upgrade w/o the addl. s/w that brings back the great sound.

 

I'm with you in that I get tired of the loud snaps and pops, but otherwise like the exhaust open.. let us know how you make out with a modified tune.
Lawrence

 

Won't the existing SW still push out the same sounds, regardless of the O2 sensor?

 

The original K309 software update significantly reduced the overrun fireworks on some of the '14 V8S cars.

 

As mentioned in previous post.. the first sensor fix took out the pops and cracks, but is has now been amended. I asked the Tech at my dealer if he could duplicate the original sensor fix to get rid of the pops and cracks, but he said it was not possible now as Jaguar controls the fix that is used.
Lawrence

 

Yes the original K309 update basically entirely removed the overrun from my car until the later software update brought back the pops and bangs.

 

Which remains as one of the craziest things that has ever surfaced on this board. The few people affected were made to think they were insane before Jag ever acknowledged the issue.

 

I'm working with Stuart @ Velocity. They're going to work up a custom tune for me and while it may now completely remove all of the overrun, they may be able to reduce it quite a bit... if I can even get a 50% reduction, I'd be extremely happy. Will keep everyone posted.

 

Did you ever get your exhaust updated to reduce the crackle and pop?

 

I've always been able to tone it down through closing the exhaust and also removing it from sport (lower rpm's/shift points). I would hate to remove it completely...

 

Just got my brand new 17 F Type R- Its my Aston Martin Vantage replacement. The F Type has a lot of awesome attributes, beautiful design, it's quick enough, love the engine acceleration and rev matching sound, .. but I can't stand the ridiculous, artificial, pops and bangs. Its like an opera singer with a serious stomach issues! For me, the overrun should be another option (besides the current opening and closing/ baffles on the exhaust). Keep it loud, but eliminate the overrun. Just like the Maserati Gran Turismo... super awesome 4.7l V8 loud sound, without the explosive diarrhea at the end. So...Did you were able to have the overrun codes removed from your car? If not, maybe if we have enough people that are not happy with this dysfunction, we can request Jaguar to provide an update to the fuel control firmware to eliminate the overrun.

 

I disabled the pops and bangs on overrun (optionally with a switch), but I'd be interested in a software solution (switchable) too.

 

The original K309 technical bulletin says that dealers should use SDD with DVD143.03 v.218 or later so if you got a copy of that particular version and flashed your PCM with that I would assume the pops and bangs would be reduced.

 

Hello. I'm taking my '17 Ftype R for my first yearly service. I'm going to request to remove the overrun (It's driving me crazy). Just verifying how you were able to remove the overrun? By requesting the technical bulletin K309 , or SDD with DVD143.03 v.218 or later?
Any impact in performance?
Thanks