Do you know what the problem could be
I check the following, throttle Body may need to be cleaned. Check the fuel filter. These would cause low RPMs
My info says, 653 rpms at idle, v6 engine. That picture looks fairly close. That middle mark between 0 and 1 should be 500 rpms. Just my opinion.
The idle control valve may be dirty or faulty. The idle speed is normal.
Looking for a Used Mustang in your area?
CarGurus has 40,918 nationwide Mustang listings starting at $995.
Search Ford Mustang Questions
Ford Mustang Experts
#2G A ArneReputation1,980
Find great deals from top-rated dealersTMSearch
Related Models For Sale
Used Cars for Sale