What is your question?
·
·
What is your question?
Is gone and the van idle rough and code po401 comes up now.what wrong and how to fix it
2 Replies
A professional scanner is needed to check EGR circuit operation.. Did you get the hoses hooked back up to the right ports? Possible blocked passages, pressure sensor (DPFE) or vacuum control solenoid issue but it must be tested to find out!!