E53 petrol fail safe again.

[X5smw]

Right… changed the throttle body, now goes like stink… 

didn’t start… new battery, now starts and goes like stink….

now drops into fail safe and says the idle valve is mechanically stuck open.

where is it, how much is it… can I kick it? 
 

 

[Greydog]

Morning Stu

Long time since I played with a straight six so the old memory might be wonky here so check realoem

From memory it is linked to the Air Pump and Vacuum control system. Find the Airpump and follow the Vac lines to the rear of the engine you should find a valve with a plug on top (or end) first make sure all lines are good no splits or cracks check the valve is operating, dont forget there is a non return vale in the system close to the inlet manifold. 

Hope this helps

Dave