[steamship]

Originally Posted by Mechcanico Lee

Here's where I would go ..... does the car have the button to disable traction / esp ..... if yes press it then start your normal drive cycle , see how it goes

Not sure if this helps Andrew, but I was out for a short leisurely drive yesterday and disabled the ESP at the very start. I have the same issue as you, but somewhat more regularly. Most of the trip was fine, except twice at junctions. One crossroads and one blind junction. As with you, when moving off, there were lots of revs, but little acceleration. A blip of the throttle restored it to normal function.

From all the suggestions previously mentioned, I still think the throttle position sensor may be the culprit. I even bought one from the forum sponsors, but haven't fitted it yet. Jim mentioned about a similar scenario, but his I think was more a one-off, and I believe his was related to corrosion of some terminals in the ECU box.

My reasoning for thinking it's the TPS is how I approached those junctions. Driving along around 40mph and then just easing off the throttle on approach to the junction, and just using the brakes to bring the car to a full halt. Someone mentioned that the sensor has a double rheostat, one registering from 0-100 and the other 100-0, and that combined they should give a 100% reading. If not, you don't get full throttle. That at least sounds plausible, but until I change mine and dismantle the old one, I can't be sure.