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2005 CHEVY COBALT ENG PWR REDUCED - HELP !! REPLACED THROTTLE BODY TWICE AND NEW ACCELERATOR PEDAL

I have replaced the accelerator pedal(w/new), replaced throttle body(w/ 2 used) still getting engine power reduced. I can clear codes but sometimes it takes 20 minutes to be able to actually start driving without the ENG PWR REDUCED message coming up.
Current Fault Log------------------
B2AAA: Unknown code - More information may be available on the webP0641: Unknown code - More information may be available on the web
P2135: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation
P2138: Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
Pending Fault Log------------------
B2AAA: Unknown code - More information may be available on the web
P0449: Evaporative Emission Control System Vent Valve/Solenoid Circuit
P0452: Evaporative Emission Control System Pressure Sensor Low Input
P2135: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation

Vehicle: 2005 CHEVY COBALT 2.2 ENGINE
asked Jul 25, 2017 by JY

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