Erratic throttle response when cold

[HPsauce]

Originally Posted by Architex_mA8tey

. . . I promise I wont touch your rear headrests!!!

I'll come if you promise to fix them (it, the other is OK) ........

[HPsauce]

Yes, it's misbehaved again. Big time. But only once in a number of short journeys.

Left my house this evening (car unused for almost 24 hours) and drove up my road (200yards) then did a sharp left uphill at a T-junction and a sharp right also initially uphill at another T-junction just a few yards on into a B-road.

Low power! I went from 1st to 2nd to 3rd very gradually at highish revs (3000+), reaching about 40 mph, before I intervened. After that the car behaved perfectly on a 3-mile journey, as it did on the return an hour or so later.
I plugged in the laptop and ran VCDS - nothing recorded at all. Clean

Went out a bit later, two short journeys about an hour apart again, all fine.
Came back and scanned again with VCDS - an 01119 showing this time in ABS.

[HPsauce]

A couple of journeys this morning very similar routes to last nights; no problems and no codes either - not that that seems to prove anything.

I'll be carrying my laptop with VCDS around with me from now on and plugging it in ASAP after any "glitches".

Edit: A few more short journeys today and no dramas. No codes either.

[David's8]

I know that this is a bit off the wall but these episodes always seem to happen on bendy bits and junctions? Are you not accidently hitting the tiptronic buttons on the wheel as you are turning the wheel which then drops the gear so you are revving without going anywhere. I know that I have done the same on a few occasions and thought that "something was wrong" when in fact it was a finger problem. The car seems to think that you are demanding high revs at low speed and therefore keeps the game going.

[HPsauce]

Definitely not.

[David's8]

Originally Posted by HPsauce

Definitely not.

Didnt mean to insult you there but without having direct experience of the symptoms its hard to understand the problem fully. I guess the issue is not so much one of a lack of velocity but a definite lack of power at the actual revs?

[HPsauce]

Originally Posted by David's8

without having direct experience of the symptoms its hard to understand the problem fully

Even with now almost 18 months of DIRECT experience of the symptoms I am nowhere near understanding the problem!

[steamship]

Originally Posted by HPsauce

Even with now almost 18 months of DIRECT experience of the symptoms I am nowhere near understanding the problem!

Sorry to hear that this is still ongoing. I've only experienced it a few times on a shortish trip last month, so at least know the symptoms.

[HPsauce]

Originally Posted by David's8

Didnt mean to insult you

You didn't, I'm open to any and all ideas.
Today I "think" it was all OK, going to AITP and back, and no codes whatsoever showing at the end of the journey(s).
Roads coming home were not bad, so several "overtaking opportunities" were enjoyed, a couple making full use of kickdown.

And yes David, it's a BLATANT lack of power (which will continue, given enough time and no-one behind you, up through at least two automatic gear changes), which returns instantly if you release the throttle and press it down again to the same extent.

[HPsauce]

Today it was driven some distance by a friend of mine (in the motor trade, the guy who helped me buy it) and he said it was perfect.

Also passed it's MOT (he took it there as a favour) with 2 minor advisories:
1. One of the four rear light bulbs had blown (sod's law, it was fine yesterday when I checked)
2. Slight deterioration of a NSF inner suspension bush, but no excessive movement.

Also no codes whatsoever showing when scanned later.