Been having a lok at your forum, especialy on poor tick over. I have cleaned throtle body, replaced plugs,replaced rubber seals on injectors, and still I have uneven tick over when cold like running on 3 cylinders, and very uneven when stopping at trafic lights until operating temperature is reached.
I dont appear to have much luck getting more info on the uk Volvo Drivers Club. here is hoping you may help.
Regards
Stan

Try the bad-injector test: With the car idling rough, disconnect the electrical-connector one injector at a time. If you unplug an injector and notice no difference in idling, then you've located the bad injector.

Thanks for that ndosouza. unfoftunatly test does not apply, I have the constant feed system and dont have electric feed to individual injectors

Is the car running rich, with some black smoke out the back? Does the tickover problem disappear when it is fully warmed up, with an otherwise-sound idle?

Hi Steve. You`v`e got it, but without the smoke. But as the chap in the other thread says, could be bad injector.

Sorry about delay in answering but also having computer problems.