Thread: Code PO 400
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Old Oct 12, 2010 | 11:25 AM
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bmorgan
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Joined: Aug 2009
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From: Warner Robins, GA
Default Re: Code PO 400

Originally Posted by patpur
No they ran their computer and decided it was the EGR valve itself. Looks like a bigger computer/code reader than our Matco. We'll see when they get the parts, said it would be a few days. Should I ask them to clean the Throttle Body?
I am not sure if it is necessary. I was just going by information that I have read on the MB forums. From what I was reading, I took it that a dirty TB could be the cause of the problem with the EGR valve. It would not hurt to ask.
 
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