bad idle rpm (really bad) after maintenance
 

Hi All,

after a maintenance (plugs, fuel pump and filter, oil and oil filter) the car drove good, a few day's after I pushed it a little the idle rpm started to roll between 600 and 1400 when car is cold, when car gets wormer the rpm is better but not perfect
also the cars temp is going up to 95-100 what use to be 80-85,

I purchased a fuel accumulator didn't install it yet,

pleas your recommendations

thx