Unleash Your Vehicle's Potential P0505 - The Key to Idle Air Control System Optimization

In this thread, the poster mentioned that he discovered the electrical connectors to the IACV and the power steering pressure sensor were ... The P0505 code can be caused by a faulty idle air control valve, vacuum leak, damaged wires or connectors, an idle speed that isn't calibrated, ... So over a month i had a CEL, which was the idle air control valve, i replaced it the IACV with an excellent one. Its still reading P0505, ... Looking at P0505, it does list Idle Control System Malfunction. Unfortunately, it is rather vague. There is no separate IAC valve anymore. The P0505 code, along with the P0506 and P0507 codes, have to do with your vehicle's idle air control valve (IAC), a piece commonly found on or near the ... My check engine light is on and it's throwing the P0505 code out which is an "Idle Air Control Malfunction." I thought for sure by changing out the IAC sensor, ... Depress the accelerator pedal slightly. Start the engine and run for 5 seconds. Turn the ignition switch to the OFF position for 10 seconds. What are the causes of the P0505 code? · Fuel system: The fuel system may be contaminated with water, or the fuel filter could be clogged. · Throttle position ... The ODBII code P0505 indicates a malfunction in the idle control system, which regulates the engine's idle speed. I've replaced the IAC valve, thoroughly cleaned the throttle body and can't find any vacuum leaks. Idles very high and can't figure this out.