2000 honda accord 2.3 v tech
 

granddaughter bought this accord needed water pump,alternator,blowed head gasket and bottom engine noise,also the car would randomly start would turn over but not run didnt matter if it had been running or not so probably not a heating issue.anyway bought one of those low millage japanees engines 50,000 miles or less runs great but still have the starting problem we used the old harness,new alternator all the sensors sorry to be so long winded but wanted the whole story out there thanks for any help

Hard starting,,,,,,can you give more details?

Like you turn the key and nothing happens.....or you turn the key, starter spins the engine but it does not fire up and run.........or it fires up and runs for a few seconds and dies.