The throttle body can accumulate carbon deposits causing the throttle to stick or pop when first accelerating after the vehicle sits for a while. Performing a throttle body service will generally correct this problem.
2001 Honda Accord Problem Reports
Most Reported 2001 Honda Accord Problem Reports
A rough idle and harsh transmission shift can be caused by a broken front engine mount. Replacing the broken mount will address these issues.
Delphi style alternators on some of the engines have a history of alternator bearing failure. Bearing failure will cause a whining noise coming from the engine compartment.