Fuel Filter -- doesn't know or care about the temperature
Are the Spark Plugs in the motor over 3 years?
Thermostat -how old is that ?
Oxygen Sensor --over 100,000 miles,replace it
Plug Wires? How old? & dist cap
What your saying-- is when cold-- it is in open loop & won't
run until warm & in closed loop.there is some clue to what
to diagnose
Are all the vacuum hoses on according to the diagram
under the hood ?
What is the fuel pressure at the schrader valve on motor,
with & without the vacuum hose on pressure regulator?
Is the battery any good-test it
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