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2004 Honda Accord

Question: code po171

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saleen196, 2.4L 4 Cylinder, Selma, CA, May 26, 2011, 15:55
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I have my honda accord 2004 /2.4 engine this is the code i get with my scanner PO171

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, May 26, 2011, 21:05
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    P0171 is fuel system supply too lean. You could have a vacuum leak, low fuel pressure, bad MAP sensor, bad O2 sensor...... looking at live sensor data on a professional grade scan tool or even looking at "freeze frame" information on your scan tool if it is available may indicate where the problem is.

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