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i know what the codes mean, p1131 says that the upstream heated 02 sensore is reading lean, and the p1132 means the the up stream heated 02 sensor is reading lean. does this mean that i need a new heated upstem 02 sensor or something else?
 

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It probably means that you have two bad O2 sensors on the top side of your engine. Goto Auto Zone and have them read the O2 sensor voltages using the entire data set with an OBD-II scanner. Under idle conditions, if the O2 sensors are switching around 0.5 Volts then you have a more serious issue. If both are running below 0.5 Volts, then you need to replace both sensors. You need to read voltages for O2S11 (front side) and O2S12 (back side) for this problem.
 
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