(T) Rough running cinq sporting

My Cinq Sporting's been running rough for a few weeks now - and my garage swear there's nothing wrong with it. They think that I can notice it, only because I drive it regularly.

Anyway, changing up to 3rd gear at ~30mph is never usually a problem, but now it makes the car vibrate as though I should still be in 2nd - it does the same in other gears as well, at respective speeds. Acceleration is fading at 2000rpm more regularly than usual - despite having run injector cleaner through it within the past 500 miles. It's been suggested that the ECU could be at fault.

I'm going to take it to the dealer, and see whether they can find anything. Just wondering if anyone could suggest the sort of cost I'll be looking at, if it is the ECU?

Check the Map sensor and Lambda first of all.

Liam

Maybe your engine mounts need looking at. Chances are the engine is fine but under load mountings are allowing vibration.

Sorted - it was the gearbox mount. Now it's been replaced, I've realised how long it must have been dying for... the car goes like a dream!

Thanks for the advice.