Posts: 2,103
	Threads: 122
	Joined: Jan 2013
	
Reputation: 
9
Location: south west, devon
Car Model/Spec: Kingfisher Ph1 Dturbo S
Thanks: 1
	Given 7 thank(s) in 7 post(s)
	 
	
	
		What is this switches purpose does anyone no?
Most hdi's show up this fault wen codes are read obviously cant be important
Cheers james
	
	
	
	
		
	
 
 
	
	
	
		
	Posts: 18,242
	Threads: 386
	Joined: Dec 2011
	
Reputation: 
87
Location: Suffolk
Car Model/Spec: Focus Titanium
Thanks: 1
	Given 118 thank(s) in 117 post(s)
	 
	
	
		It's so the ECU knows when you dip the clutch to change gear, it tries to the match the revs for a smoother gear change.  Not too important tbh.
	
	
	
	
		
	
 
 
	
	
	
		
	Posts: 2,103
	Threads: 122
	Joined: Jan 2013
	
Reputation: 
9
Location: south west, devon
Car Model/Spec: Kingfisher Ph1 Dturbo S
Thanks: 1
	Given 7 thank(s) in 7 post(s)
	 
	
	
		Right o
not a bad idea I suppose.cant see it helping all that much anyway cheers
	
	
	
	
		
	
 
 
	
	
	
		
	Posts: 18,242
	Threads: 386
	Joined: Dec 2011
	
Reputation: 
87
Location: Suffolk
Car Model/Spec: Focus Titanium
Thanks: 1
	Given 118 thank(s) in 117 post(s)
	 
	
	
		Yeah I think it also tries to avoid stalling by chucking a bit more fuel in if you come off the clutch a bit quick when pulling away.
You could unplug it and see if theres any noticeable difference but I doubt it.