2003 Mazda Protege 2003 Protege ck engine lt on, hesitates

2003 MAZDA PROTEGE
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TIPEJG
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Engine Performance problem
2003 Mazda Protege 4 cyl Front Wheel Drive Automatic

Code check = 0171 "Too Lean"; car intermittantly idles rough when stopped in traffic and hesitates on acceleration. Idles normally when in park. Where do I start?
Jan 21, 2010 at 9:51 PM
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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