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Hi , Can any one advise on if a faulty Thermostat causing low engine coolant temperature would after a while cause Engine Emissions warning lamp to come on? I've had code read and was told " po170-02 " "Fuel system Trim Low" are these faults related? Car has also been hesitant on cold mornings .
( Car is a , 1.8 , 2004 ) . Thanks .
 
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