Fuel System Injector Cleaning
To maintain proper fuel to air ratio you must make sure to get your fuel injectors cleaned out every 15 to 20,000 miles for max performance and maintain a complete burn. It does not take much to clogged up a fuel injector. Very small particles of dirt can cause the injector to misfire. This will cause the engine to shake and have erratic idle waste gas throw the check engine light on etc.