How do I fix code P0505?
Table of Contents
How do I fix code P0505?
What repairs can fix the P0505 code?
- Replacing the IAC valve and cleaning the throttle body and passages.
- Removing carbon from throttle body and IAC passages and clean IAC.
- Repairing a vacuum leak in the engine intake manifold vacuum system or gaskets.
Can I drive with a P0505 code?
Trouble code P0505 should be diagnosed and repaired as soon as possible. Not recommended, however, you may drive your vehicle while trouble code P0505 is present unless the engine stall or stumbling is is severe enough to hinder proper vehicle operation. Erratic or lack of idle control may be noticed.
What does diagnostic code P0505 mean?
Idle Control System
Diagnostic trouble code (DTC) P0505 stands for “Idle Control System.” The code may be accompanied by erratic idle speeds that can lead to stalling and other issues. On most older vehicles, the idle control system relies on an idle air control valve (IAC) on or near the throttle body.
How do you diagnose a bad IAC valve?
Below are some of the most common symptoms of a faulty IAC:
- Illuminated Check Engine Light.
- Incorrect Idle Speed.
- Stalling.
- Engine Won’t Start.
- Check for Diagnostic Trouble Codes (DTCs)
- Perform a Visual Inspection.
- Test the IAC Valve (Without an OEM-Level Scan Tool)
How do I clean my idle air control valve?
How do you clean an IAC valve? After relocating the IAC valve, you need to unscrew it and detach all the wires. You can clean it by soaking it in gasoline and blowing compressed air into it. Then, reattach it with the screws and reconnect the wires.
What does code P050A mean?
Cold Start Idle Control System Performance
Diagnostic trouble code (DTC) P050A stands for Cold Start Idle Control System Performance. When you start your engine, your vehicle’s catalytic converter needs to warm up for it to reduce emissions. Your engine’s powertrain control module (PCM) tries to heat it up faster by increasing the idle speed.
What is the function of IAC valve?
The idle air control (IAC) valve is located on the throttle body of fuel-injected engines, where it works with the vehicle’s ECU to electrically regulate airflow to the engine to ensure smooth idling.
How do I check my IAC?
5 Steps on how to test iac valve with multimeter
- Step 1: Locate the iac valve from service manual.
- Step 2: Inspect the IAC Valve operation.
- Step 3: Test the resistance of the coils.
- Step 4: Check supply voltage from the ECU.
- Step 5: Check the coil for short circuit and for short circuit to earth.
