will not start on a cold day on 2001 Chrysler Town & Country

3.3 litre engine will not start on a cold day . on a warm day starts right up sounds like its out of time backfires and smells of gas.getting code that says catalyst below efficiency bank 1 ...fuel pressure show 60psi when running but when you turn it off it eventually drops below 40psi ..have changed camshaft sensor crankshaft sensor plugs wires coil computer module ect sensor cleaned idle air control and throttle sensor cleaned map sensor..any ideas please help

by in Niceville, FL on April 20, 2014
1 answer
ANSWER by on April 20, 2014
when it doesnt start check for spark ,also when you try to start it cycle the key 3or4 times before cranking ,it could be your fuel pump is losing pressure when it sits overnight !!!
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