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I concur with the others. Both the Fuel pump relay and the Crank positioning sensor are suspect.
The hard start when hot might lean me a bit toward the Relay. As mentioned on teh other post, the solder joints inside the relay get cracks. Heat might expand these cracks in the solder joints making it hard to start.
This relay can be easily opened up and resoldered.
http://www.fcpgroton.com/product-exec/product_id/5662/nm/1985_1993_Volvo_240_Fuel_Pump_Relay/category_id/172
The crank positioning sensor also has issues where the insulation down low (out of sight) tears and water works on the sensor. Just as a Baseline with this new car, it would be good to replace it.
http://www.fcpgroton.com/product-exec/product_id/3396/nm/1989_1993_Volvo_240_Engine_Speed_Sensor_Impulse_Sensor/category_id/116
P.S. The cleaning of the fuseholder (#6 i think) couldn't hurt, that too when hot would cause resistance making a hard start condition.
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'75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me http://home.no.net/ebrox/Tony's%20cars.htm
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