Re: How do I clear a code P0506 on Chevy Colorado 04'?...
Did you try disconnecting the battery and then reconnect battery, it works a lot like a hard boot on a PC in fact that is what your doing to your cars computer
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First......clear those codes and see if they return before doing anything.Purge valve is on the vent line from tank to engine ,usually in the engine compartment,and vent valve is on the line from tank to outside air,usually by the fuel tank.Don't change any parts until you check them and their circuits with a good scan tool.
Hello, you probably have a trouble code P0506 stored in the system, this will keep from passing test. real simple fix. the throttle body is dirty, this will cause not enough air around the throttle body. simply clean out the inside of the throttle body around the throttle plate and bore. you will need to use throttle body cleaner or carb cleaner
P0506 Idle Air Control System RPM Lower Than ExpectedThis DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.
This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM. Causes: A P0506 DTC trouble code may be caused by one or more of the following: ·A vacuum leak ·An air restriction in the intake · ·air path or exhaust ·A faulty positive crankcase ventilation (PCV) valve ·Damaged/failed/dirty throttle body ·Internal engine problem ·Failed PCM This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns
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