Idle malfunction have a subaru outback 2004, check engine light came on. problem code said idle control system malfunction. What is my next step?

Help in the videos.

Even with the VDC light on it shouldn't fishtail. Unless you have a lead foot or the tires are bald. Best to have the codes read. Could just be a bad wheel sensor.

First thing to do is have the computer scanned for trouble codes.

Hello,

I am unable to find a P2009 code. The closest I have come across is a P2109 which is:

THROTTLE/PEDAL POSITION SENSOR "A" MINIMUM STOP PERFORMANCE

Which will usually be accompanied by:

• Improper idling.
• Poor driving performance.
• Engine stalls.

Also the "Cruise" light will always flash when the Check Engine light is on with these later models, but it does not mean there is a concern with the Cruise control. The diagnostic checks for these cars require the SDS: Subaru Diagnostics System.(A laptop computer with Subaru specific diagnostic software). These concerns are unfortunately not easy to diagnose w/out Subaru dealership resources. I hope this info helps.

There could be a hundred causes for a check engine light. First step is to hook up a computer scan tool and see what codes the computer has. The next step depends on the codes.

CODE PO420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD BANK I * CODE PO325 KNOCK SENSOR NO.1 CIRCUIT MALFUNCTION BANK NO.1 OR SINGLE SENSOR

Could be the Idle Control Valve?

u can clear/reset the check engine light either with a scan tool, hit clear codes, or u can just disconnect the battery, the scanner clearing method is preferred as disconnecting the battery can cause temporary stalling issues.

You may have to take it to a shop and have them connect their OBD tool to the computer and clear the deep memory. If you have a code left in the deep memory it can reapear like that. Good luck. Please rate me so I know how I'm doing. Thanks.

run the fault codes to find the suspect sensor