Rough idling in drive when still

Hello, engine performance concerns are what influence engine idle that is more rough than expected. This means there could be an issue with fuel delivery, ignition spark, emissions controls, air intake, exhaust flow, engine compression or engine timing. It's impossible to know what's going on without doing some detailed diagnostic testing, utilizing highly connective and productive diagnostic equipment and workshop manuals for reference. www.repairpal.com/repair-shops Check that link to find shops near you that can help.