Hi All,

  My EL has always had a habit of coughing and spluttering into life if
I start it on a warm day and it hasn't been used for 12 hours or so.  So
it'll start no worries, but then idle quite rough for the first ~3
seconds, then after that will idle fine.  When the weather is cold and
the car's been off for a while, it will start and idle perfectly
straight away.  If I start the car after it's been turned off for a
shorter period, it will always start fine regardless of the temperature
outside.

  The car had not been used for the last 4 days, and when I started it
at lunch time today (around 30oC outside) the rough idle lasted around
30 seconds before smoothing out, which has concerned me a little more
than the usual 3 seconds of unhappy idling.

  The car is dual fuel, and the usual ~3 seconds of rough idling
happens on either fuel.  Today the 30 seconds of rough idling was while
running on petrol.

  Could dodgy leads be causing the problem?  I'm not sure how old they
are so I'll replace them anyway.  The plugs are around 15,000k's old.

  Can anyone recommend looking at anything else that may be causing
this to happen?

Cheers,
SL.