UKDM 4th gen bb2 speed restricted?

[Demonlude]

Gets to 100mph and if feels like there is no more acceleration, and after a bit of work will top out at about 112mph.

When you say it "tops out at 112" what do you actually mean? Do you mean it just doesn't go any faster?

The only reason I ask is that your symptoms don't sound like a restricted ECU. When you hit the limiter in a restricted car, it's literally the same sound etc as hitting the rev limiter through the gears. What you've described doesn't sound like that's what you're experiencing.

[Peachy]

Yes top speed 112mph.

[Demonlude]

But what actually happens when you reach 112mph? Does it sound like you've hit the Rev limiter , or does it simply not go any faster?

[CrunchyAdams82]

When I used to hit the speed limiter on mine, there used to be a loud bang. Which is just the fuel cutting out as far as I'm aware. I thought that's how those limiters worked?

[Peachy]

No doesn't hit the rev limiter. Simply can not get any more speed from her.

[Vtecmec]

Maybe a daft question, but it's while in D4?

[Peachy]

yes

[FrontBackSide2Side]

If you are accelerating hard up to the limiter it would feel like you hit a brick wall when you get to it. Does your engine light come on with the ignition then go out as it should? Because it sounds more like a limp home mode to me.

[Peachy]

Yes the engine light does come on with ignition and then goes off normally.


Whats limp home mode? And how can I fix it?

[Ammo]

Can you take a pic of your engine bay and post it on here please

We need to know what car you actually have