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2011 Chevrolet Impala LS Retail 4dr Sedan

2011 Chevrolet Impala
Trim Info:
Front Wheel Drive, 4 Door Sedan, Large
19 mpg city / 29 mpg hwy
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January 25, 2013, 1:53 pm

Jared H
 

Question: I need to know about my maf sensor and evap sensor

I changed my battery and heard a click in the motor compartment somewhere when I installed the new battery. Got in the car and found a check engine light on. I got it checked for codes and the maf sensor and the evap unit sensor or whatever came up. I cleaned the maf sensor and cleaned my filter. They reset the codes, but they came back on. It was working well before, so what is wrong? I am getting horrible gas mileage right now with the default settings.


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