Have Volvo Questions? Ask a Volvo Mechanic for Answers ASAP
Hello. My name is ***** ***** I am happy to assist you today. Give me just a moment to review your post, and I'll be right back with the help you need.
When your check engine light comes on the computer system detects a problem and will set and store a fault code and or codes. In order to determine what is failing we are going to need to know what the fault code and or codes are that are setting. Most auto parts stores such as Auto Zone will do a scan for you at no charge. If you can get the scan done and post back with them I will direct you from there as to the proper repair.
Okay can you tell me the actual fault code and or codes are that should be setting when the check engine light comes on?
If you can get me the actual fault code and or codes I can help you determine what has been missed here.
Okay post back when your ready and we can work from there.
Thank you, ***** ***** when your ready.
Okay sounds good.
The common cause for the code P0101 to set on your S40 is usually caused by a failing Manifold Absolute Pressure (MAP) Sensor and in most cases if there are no intake air system leaks and or vacuum leaks then replacing the MAP will usually solve this code.