Throttle response limited in the rain!
Hoping some genius can help me out. A while back I was sat at the traffic lights in neutral in my 53 plate mini one, lights went green, into first gear, accelerate and my revs refused to go any higher than 1500-2000, I thought I was in third, but I wasn't. I pulled over, turned off, confused and then started it up again, this time it pulled off fine. No warning lights came on. No faults in the subsequent weeks, until it rained again!!
It's now happened 5 or 6 times, always in the rain, sometimes multiple times on short journies. Always fixes itself when I stop & start the engine though. And I have never had any warning lights come on when it does happen. I'm starting to feel a sluggish response when it's not wet, but that may just be me.
Took it to my local garage (not BMW/mini), but it shows no faults and not even any stored faults.
I've read a thread on here suggesting it may be wiring damage but I can't ind any at all. Although that would make sense.
So can anyone help? I really begrudge taking it to my local dealer ££££