i'm new to this forum and was wondering if anyone could shed light on an issue i'm having with my Signum (1.9 CDTi).
I've read through the stickies and some issues there seem similar to the symptoms i'm having but the two problems i'm having may or may not be related...
The car seems to idle erratically after its been on a run - jumps between idle and 1000rpm and kicks out quite a bit of smoke which is kind of bluish but smells of diesel to me. It almost sounds as if the turbo kicks in for a split second as well when it jumps to 1000 rpm. However if i turn i off then start it again it idles perfectly - no smoke, no smell. The spanner light is also on permanently.
another issue is the temp guage - which may or may not be related. it barely moves from 70. tonight i stated it, let it idle and it went to 90. when i moved off it then quickly went back down to 70 (along with idle issue until i pulled over and re-stared the engine.) is this related or a different issue?
any help greatly appreciated :-)