Accord Hard Cold Start

I have a 1987 Accord LXi that is extremely hard to start when cold. Will start anytime during the day until it sits all night long.

Things that have been checked/fixed:

idle control valve-replaced
timing off one tooth-fixed
injectors-replaced
cold advance solonoid-checked
distributor-rebuilt
coolant system bled

What's left?:banghead:

Sensor?
Throttle body?
ECU?

Any ideas or anyone else had this problem?:feedback:

define hard to start.. like crank real slow? or cranks fine but takes a while to fire...

Turns over but won't start, acts like it not getting fuel.

Fuel pump has appox 36 psi.
Has spark.

Starts fine after it's started the first time that day.

spark plugs fuel filter?

New plugs and fuel filter....:banghead:

check the coolant temp sensor... if its bad the engine wont know its cold and wont enrich the fuel mixture