I recently bought a car from a co worker. When I first got it it needed some work. It had an EGR code. I replaced the EGR and the egr check solenoid circuit. After fixing that the car wouldn't start one day. I replaced the Mass Airflow sensor and it started right back up. After driving it for a while, the car idles high and gives the following code PO507. I brought my car into the shop. First replaced the Idle Air Control Valve. Then I got a rebuilt and reprogrammed ECM. After replacing thses parts I thoguh my code would be gone but it still isn't gone. The dealership and the shop told me that the ECM/PCM takes 300 to 500 miles to relearn what it is suppose to idle at. Im thinking there is either a vacuum leak or the throttle body is messed up. Any help would be appreciated since the shops and dealerships cant even figure it out.

2001 Dodge Stratus RT Coupe V6 3.0 L Mileage: 115,100 miles

 

Try reading this for other options to check:

http://www.obd-codes.com/p0507

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Your car shares the same engine/chassis with the 2000-2005 Eclipse. Search club3g.com, Im sure a few others have run into this issue.