2003 Toyota Corolla Stuttering engine

2003 TOYOTA COROLLA
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NTABO
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Engine Performance problem
2003 Toyota Corolla 4 cyl Front Wheel Drive

The engine stutters at starting(especially when it is cold) but this stops after about 30 seconds. If I move immediately after starting it does not respond to the accelerator stuttering for a few seconds before responding. The problem disappears when the engine warms up. I have changed the plugs and the fuel pump but the problem persists.
Thanks for your attention
ntabo
May 1, 2010 at 9:31 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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