406oc.co.uk

I have a D9 HDI90 that won't idle properly. The revs will vary from 1k-1.5k seemingly at random. It does this in and out of gear, so when driving along off the throttle it will tend to try and surge forward. It does this even when warmed up.

Any ideas?

Could be a number of different things - faulty TPS springs to mind, but other causes are equally possible.

Try to find someone local with a PP2000 to diagnose it properly, it's likely to work out cheaper in the long run.