mk2 digifant LUMPY on cold start

A&Q about 350Z
Q:

hi all
when my car has been standing for a few hours , it feels like it is misfiring for around 20 seconds when starting.
if i drive off immediately it jerks big time.
but after a few seconds , it is fine.
on hot starts , no probs.
is it COLD START VALVE ?
if so where is it ?
A:

ANYONE ?
got new : plugs/leads
A:

replace the blue temp sender with a newun from VW
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