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What is wrong with a 01 sport trac that runs with no trouble but your check engine light is reading P1504-P1506-P1409-P0301-P0302-P0304-P0305 and P0171-P0174?
Wiki User
∙ 16y ago
These are all powertrain codes (hence the P) and my guess is that maybe your idle air control valve is the problem. You say it is running fine but do you notice a drop in idle for a second when you come to a complete stop at say a red light? Also you are showing lean fuel ratios so have you noticed an increase in MPG or just lack of performance from the line? I would check the IACV and then if it looks good reset codes and give it a few days. If engine light comes on again then definitely have it looked at to prevent something costly down the road. That light merely means that the computer has sensed something out of range and as long as you are not blowing smoke or running rough then you have time to figure it out. Do your research though before spending a lot of money chasing parts that you may not need.
Wiki User
∙ 16y ago
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