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Hi, my name is***** the basic tuning is good and the fuel filter was replaced I would have the fuel mixture checked and adjusted. Next would be a bad EHA valve on the side of the fuel distributor and next would be a bad air flow meter potentiometer. I'm assuming that the fuel pressure is good since the car runs well cold. It sounds like it leans out when hot thus the hesitation on acceleration.
Sounds good. I'll be here if you have any questions.
I'll be here if you need anything.
Just checking in. How are you doing on this problem?
Yes, moisture in the cap is a common problem but you stated that the car was tuned. Since you stated that the tune up was already done I focused on the fuel mixture. I mentioned in my answer that if the basic tuning was good (and it wasn't) that you need to focus on the overall mixture control. Checking the condition of the cap, rotor and ignition wires is part of a basic tune up. So in essence, my answer was correct. Glad you got it squared away.
A tune up is an ignition system tune. Anytime a car has a cap, rotor and wires it should be inspected.