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Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.Is the ABS light also coming on or are you just dealing with the codes you have listed?
The code P0500 indicates you have a speed sensor concern and or the circuit to it. Since you have replaced the VSS then I would next check the circuit. I have enclosed the steps in the link below. Copy and paste the link to your browser to open and view them.https://dl.dropboxusercontent.com/u/104923897/P0500%20Feb.pdfThe code P1507 indicates a problem with the idle air control valve. I have also enclosed test steps for it as well.https://dl.dropboxusercontent.com/u/104923897/IAC%20Feb%202.pdf