Ok i just googled it. This is what i got off of a Eclipse forum

The car may just need a tune-up. Have the air filter and fuel filter replaced. Also be sure to have the spark plugs and related ignition components inspected and replaced if necessary. The throttle body and sensors on the throttle body should also be checked to make sure they are functioning properly.

If replacing those regular maintenace items does not help, you should have a mechanic also check engine's timing. If your timing belt has not been replaced within the last 60,000 miles, it may be time to replace it.



Hope that helps