P0505 stands for “Idle Control System.”
The idle control system is an important part of your car’s engine. It makes sure that when you’re driving around town, your engine operates at the right speed for optimal fuel efficiency and performance. The idle control system does this by regulating the speed of the vehicle’s crankshaft, which turns over its pistons to get them moving up and down. When everything is working properly, your idle should stay steady even if you step on the gas pedal or release it; if not, there could be a problem with your vehicle’s idle control system.
The P0505 code is a generic code for the idle control system. It indicates that there is something wrong with your car’s engine, but does not provide any information about what specifically might be wrong or how to fix it. In most cases, this means that you should take your vehicle into a shop so they can diagnose and repair it for you.
The mechanic will first check the engine’s coolant temperature. If it’s below normal, then the PCM (powertrain control module) will set a code and illuminate the MIL (malfunction indicator lamp). Next, he’ll inspect the oxygen sensor for wear or damage, as well as ensure that there isn’t any debris blocking its connection to the exhaust manifold. He may also check your air intake hose for cracks or holes that would prevent proper airflow into your engine’s cylinders during combustion cycles.
Finally, he’ll inspect both sides of your idle air control valve using an ohmmeter to make sure they’re opening and closing properly–if one side doesn’t work at all while another works fine then this could indicate that only half of your IACV needs replacing instead of both halves being bad at once.
The idle control system is an important part of your car. It keeps the engine running smoothly and prevents it from stalling out or dying unexpectedly. The P0505 code means that there is a problem with this system, so it should be checked out as soon as possible by a mechanic if you see this code appear on your dashboard.
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