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01 oDYSSEY WITH P 0401 CODE. I removed the intake manifold
01 oDYSSEY WITH P 0401 CODE. I removed the intake manifold and cleaned out the passage way both in the block and in the intake manifold. Then I replaced the egr valve with a new Dorman EGR valve. The … read more
justinsbg
justinsbg
Lead Diagnostic Tech
Associate Degree
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Accord EX: 1999 Honda Accord EX, 137,200 miles. Year ago engine
1999 Honda Accord EX, 137,200 miles. Year ago engine light came on, Honda code P0401, installed EGR pipe kit & clean EGR port. 3 weeks later engine light. code P0420. replaced catalytic converter. 4 m… read more
Eric
Eric
Retired
N/A
33,772 satisfied customers
Accord LX: I have a 2000 accord vtec v6. CEL has been on steady
I have a 2000 accord vtec v6. CEL has been on steady for some time (P0401 code, EGR valve just replaced) but started flashing the other day. Car began running VERY rough to the point of almost stallin… read more
Honda-Man
Honda-Man
Associate Degree
3,196 satisfied customers
Honda Accord EX V6: 2000 accord EX V6 Code P0401 insufficient
2000 accord EX V6 Code P0401 insufficient EGR flow. Intake manifold port and corresponding port cleaned out of all carbon built up. Got code again, Replaced ERG valve, got code again. Code had been cl… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
23,906 satisfied customers
2000 honda: 6-cylinder 4-wheel drive, showing engine light on..p0401
I have a 2000 honda passport 6-cylinder 4-wheel drive, showing engine light on. I checked it with an Autoscanner and got a code P0401. Could you please tell me what this code means? thank you.… read more
Eric
Eric
Retired
N/A
33,772 satisfied customers
1999 honda: v-6..trouble code p0401egr flow insuficient..new egr valve
I have a 1999 honda passport with a v-6 it has been shooting trouble code p0401 egr flow insuficient we put a used erg valve on it no change bought a new egr valve and still no change light keeps comi… read more
Eric
Eric
Retired
N/A
33,772 satisfied customers
2001 Accord: light comes..doesnt come..engine start..illuminated
The TCS light comes on when I am driving my 2001 Accord. It doesn't come on at engine start, but will usually light up after driving for ten to fifteen minutes. If it is not illuminated, I can press t… read more
Kyle N.
Kyle N.
Honda Master Tech
Vocational, Technical or Trade Scho
3,635 satisfied customers
1999 Honda Accord EX: Cyl..My check engine light went..manifold
I have a 1999 Honda Accord EX 4 Cyl My check engine light went on and I got a reading of PO401 ERG insufficient flow detected. From what I see the ERG valve can be removed and cleaned, also the manifo… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
20,106 satisfied customers
2001 HONDA ACCORD: cyl v..CODE DROVE THE CAR ABOUT 15 MINUTES
HELLO AGAIN I HAVE A 2001 HONDA ACCORD 4 CYL V TECH MTR / MY PROBLEM IS I HAVE A CODE P0401 EGR INSUFFICENT FLOW. I CHANGED THE EGR AND CLEARED THE CODE DROVE THE CAR ABOUT 15 MINUTES AND THE SAME COD… read more
Eric
Eric
Retired
N/A
33,772 satisfied customers
intake manifold..check engine light for the egr valve..new valve
How do you clean out the EGR intake port on the intake manifold? My EGR intake port does not draw into the engine. I have a check engine light for the EGR valve, but I know if the intake port is not w… read more
Tim West
Tim West
Service Manager
Computer/ Automotive certifications
16 satisfied customers
I cleaned intake manifold EGR port.I remove throttle body..PCV valve
car has P0401 code. EGR insufficient flow. I replace EGR. I cleaned intake manifold EGR port. I remove throttle body to make sure no carbon was left. Checked PCV valve- it is OK. still get diagnostic … read more
John G.
John G.
Honda Technician
High School or GED
2,643 satisfied customers
1999 honda: wheel drive..auto zone..my check engine light..egr valve
i own a 1999 honda passport 6cylXXXXX i went to auto zone bcuz my check engine light wa on. they put it on their machine & sd it was my egr valve so i replaced & my check engine light is still coming … read more
Eric
Eric
Retired
N/A
33,772 satisfied customers
EGR valve..driving car..car awhile, the P0401 code returned
I had codes P1491 and P0401. I took off the EGR valve and cleaned up around valve and replaced. After driving car awhile, the P0401 code returned. I then replaced the EGR valve with a new one. After d… read more
thebesthonda
thebesthonda
ASE MasterTechnician
High School or GED
2,299 satisfied customers
2000 Ody w 77K. Check engine Code P0401. Location of EGR can
2000 Ody w 77K. Check engine Code P0401. Location of EGR can that be cleaned out or need to be replaced?… read more
lorunner
lorunner
A tech
High School or GED
1,068 satisfied customers
2000 Honda: inspection..emission..obd codes were P0420, P0401
I have 2000 Honda Odyssey. I failed vehicle inspection due to emission problem. In the beginning, obd codes were P0420, P0401, and P1457. But after replacing EGR valve, cleaning out the the egr ports,… read more
jonathan789
jonathan789
Vocational, Technical or Trade Scho
370 satisfied customers
99 TL: p0401..states low air flow to EGR valve..hard acceleration
I get a code p0401 for my 99 TL that states low air flow to EGR valve. I replaced the EGR, and got the code back. It seemed to come after a hard acceleration and high revs. Is there a vaccum line some… read more
james
james
Vocational, Technical or Trade Scho
254 satisfied customers
Accords: I was told not to rush tochange the egr valve..p0401
I was told not to rush tochange the egr valve. What part usually causes the p0401 on these accords, before I rush to change the more expensive egr valve?… read more
JoeHonda
JoeHonda
Vocational, Technical or Trade Scho
184 satisfied customers
96 Honda Accord EX: 2.2L..check engine light..The code reads P0401
I have a 96 Honda Accord EX 2.2L with check engine light on. The code reads P0401. I went to Tire Kingdom to get it checked out and they told me it has a bad EGR valve. So, they wanted about $500 to f… read more
Marc
Marc
fleet supervisor
Vocational, Technical or Trade Scho
1,140 satisfied customers
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thebesthonda

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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