97 Accord EX 4 cyl VTEC - P0401?
I have cleaned vacuum lines and EGR valve ports.
Code back @ 60 miles and 92 miles second time, CEL was reset each time.
Before I throw a new EGR valve in (which seems to be working as it should, it is seated and moves when vacuum source is applied) does the solenoid valve throw this code also or does it have its own. I have vacuum up to the solenoid valve but have not noticed any vacuum at EGR and the line is clear. When is the solenoid valve supposes to operate and does it use 12v.
97 Accord 180k
87 CRX 152k