These are signs of a fuel injection system that may be dirty. Since you can't see inside your motor, you'll have to depend on other factors to determine if you need to do a fuel injection flush and tune-up. Her are some good ideas, that you need to get it done.1. Hard starting.
2. Stalling.
3. Rough idling.
4. Hesitation.
5. Knocking.
6. Loss of power.
7. Poor fuel economy.
8. Increased emissions.
9. A need for higher octane gas.
Also if your car is at least a year old or has over 15,000 miles on it. I would recommend a fuel injection cleaning. There are several systems out there, but I would recommend a shop that carries WYNN'S PRODUCTS. These injection cleaning systems are a three part set. An injector cleaner that will clean and remove all build up out of each injector, a fuel tank additive To keep the fuel tank and fuel lines clean and remove any build up in the tank, a throttle plate cleaning spray to remove any build up on the throttle plate that could cause a sticking throttle or a vacuum leak. With the gas we are getting these days, especially those of us not buying the premium grade, it's a good idea to do this at least every 15,000 miles or at the very least once a year.
With this done you will have cleaned your entire fuel system:
Fuel lines Fuel injectors
Fuel lines Fuel injectors
Intake valves
Combustion chambers
Throttle plate and throttle valve
This will restore your performance back to it's original peak and increase your Gas Mileage for:
Easy starting.
Smooth idling.
Increased power.
Eliminate knocking.
Maximum fuel economy.
Minimum emissions
Easy starting.
Smooth idling.
Increased power.
Eliminate knocking.
Maximum fuel economy.
Minimum emissions



