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Ron, ASE Certified Technician
Category: Volvo
Satisfied Customers: 35478
Experience:  35 years as a Automotive tech
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I have a problem with a 2007 s40 volvo with the check engine

Customer Question

Hi my name is Ramon,
i have a problem with a 2007 s40 volvo with the check engine light on , and with a DTC 431a with the leak detection pump , and I replaced the module for LDP and the check engine light returns , any information will be helpful Thank you
Submitted: 1 year ago.
Category: Volvo
Expert:  Ron replied 1 year ago.

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.

The problem you are having with this code can be set due to the following,

  • Dirt or damp in the pump

  • The pump valve has jammed

  • Damaged leak diagnostic pump.

    With the pump being the most common, in order to determine the actual cause run the test steps in the link below. Copy and paste the link to your browser to open and view them.

    The LDP is located above the rear subframe on the right side.