97 Accord EX 4 cyl VTEC - P0401? - Honda-Tech - Honda Forum Discussion

Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

97 Accord EX 4 cyl VTEC - P0401?

Thread Tools Search this Thread
Old 08-08-2005, 06:28 AM   #1
Thread Starter
tom10e's Avatar
Join Date: Aug 2005
Location: Hampton, GA, USA
Posts: 2
Default 97 Accord EX 4 cyl VTEC - P0401?

P0401 code...
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.

Thanks, Tom
97 Accord 180k
87 CRX 152k
tom10e is offline   Reply With Quote
Old 08-08-2005, 02:11 PM   #2
Honda-Tech Member
Chiovnidca's Avatar
Join Date: Apr 2002
Location: Cincinnati,, Oh
Posts: 7,575
Default Re: 97 Accord EX 4 cyl VTEC - P0401? (tom10e)

The solenoid could be the problem. Does the vacuum line to the egr valve show vacuum when you raise the rpms to about 1500-2000? If not, does the ecu energize the egr solenoid under the same conditions? (the engine needs to be warmed up to)
Chiovnidca is offline   Reply With Quote
Old 08-08-2005, 03:49 PM   #3
bill-71SS's Avatar
Join Date: Jul 2002
Location: springhill, Florida, usa
Posts: 476
Default Re: 97 Accord EX 4 cyl VTEC - P0401? (Chiovnidca)

a 401 code will most likely be the egr ports clogged,look under youf fuel rail and you will see a plate,take it off and clean the clogged ports out.
bill-71SS is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
1998 Accord Evap Bypass Solenoid TheSauce Honda Accord (1990 - 2002) 2 09-24-2012 03:47 PM
help with p0401 EGR Flow Insufficient & MAP sensor khkchan Honda Accord (1990 - 2002) 15 09-13-2012 11:21 AM
Check Engine Light On " Error Code P0401" for 1996 Honda Accord 2.2 liter swertepinoy Honda Accord (1990 - 2002) 0 10-06-2009 06:40 AM
OK to remove egr vacuum control and egr control solenoid hu Honda Prelude 16 05-20-2007 10:40 PM
Code 12 EGR help double Hybrid / Engine Swaps 3 07-30-2004 04:24 PM

97, 99, accord, cars, cyl, egr, florida, honda, location, p0401, po401, problems, solenoid, valve, vtec

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -8. The time now is 02:16 PM.

  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: