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P0505

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P0505 OBD-II Trouble Code: Idle Control System Malfunction
P0505 code definition Idle Control System Malfunction What the P0505 code means P0505 is an OBD-II generic code that the engine control...

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My truck runs till it gets warm then acts like it has no power.

Hi there. It seems that your vehicle has multiple malfunctions that are happening at the same time. The idle air control valve has a fault, evaporative emission system has a large leak, the gear ratio is incorrect, and knock sensor...

Failed emissions after P0505 code... Considering options

The mechanic that checked your vehicle is giving you a possible fix by cleaning the throttle body (https://www.yourmechanic.com/services/clean-throttle-body) of built up carbon. This may help with the idle and P0505 code (https://www.yourmechanic.com/article/p0505-obd-ii-trouble-code-idle-control-system-malfunction-by-jay-safford), and for passing the emissions test (https://www.yourmechanic.com/article/how-to-pass-an-emissions-test-by-mark-vallet). The...

Code p0505

For the P0505 code, you should make sure that the PCV valve is clean or you should have the valve replaced (https://www.yourmechanic.com/services/positive-crankcase-ventilation-pcv-valve-replacement). The throttle idle valve should be removed and throttle plates and IAC passages cleaned out (https://www.yourmechanic.com/services/clean-throttle-body). Make sure...

Diagnostic brought up three codes

Hi there. The codes that you are getting indicate a couple of different issues. The P0700 and P0720 codes indicate a transmission problem. These indicate a failure in the transmission output speed sensor. I have seen more wiring issues than...

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