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cels p0171 p0037

2K views 4 replies 3 participants last post by  spencerxi 
#1 ·
P0037 Rear oxygen sensor heater circuit malfunction
P0171 Fuel trim malfunction (A/F too lean)

I'm throwing both of these cels. Ijust did a clutch change this week. Anyone have any idea what this combonaation meens?
 
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