I have a 96 406 XUDT with the Bosch fuel system.
The tickover speed is high (around 950rpm) and I can't adjust it out. Bizarrely, it drops to around 800rpm when at high altitude (like at the top of a Norwegian mountain).
Is there anything that's not the tickover screw I could check?
fast idle
Moderator: Moderators
Re: fast idle
Does this pump have an anti stall adjustment? if so it could be that its set to high. Could be that was only CAV pumps.
Peter
Peter