How to Overcome RPM Won't Go Down on Mitsubishi Lancer & Galant

Normal RPM is definitely what injection car owners really want.
However, we often experience problems with the RPM of our beloved car. Like this one, the RPM won't go down even though the gas bolt is stuck. This certainly causes confusion and is even very annoying because it will disturb us when driving. So, we dedicate this review to those of you who are experiencing this problem. Hopefully there are benefits.