Diagnostic help wanted nr Bradford

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bigphil1952

Member
Posts
18
Location
bradford
Hiya, I have a 3.9 V8 1994 Disco ex japan with only 53000 miles on and its nearly mint.
It just runs rich! I have had it since Xmas and fitted,3 sets of plugs n leads, 4 different caps, 3 rotors ( both now genuine Lucas), new coil, Lambda sensors and temp sensor, but it still ticks over rough when warm, but not always.
The plugs are usually black and it does 12 per gallon if im gentle.
I think its nothing serious as it goes like f..... and is sweet when cold.
So I could do with someone with the computor kit to try and solve my problem.
can you help please, Phil
 
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