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P0342 indicates an issue with the camshaft position sensor. Here is some info for you.
P0342 CHEVROLET - Camshaft Position Sensor Circuit Low Voltage Read more: https://www.autocodes.com/p0342_chevrolet.html
P0443 indicates an issue with the EVAP purge solenoid. Here is some info for you.
P0443 CHEVROLET - Evaporative Emission Control System Purge Control Valve Circuit Malfunction Read more: https://www.autocodes.com/p0443_chevrolet.html
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