What would you like to do?

What causes an obd2 codes p0401 and p0300 on a 2001 Honda Passport if you already clean up the egr valve and passage how you can fix it?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

you can find a good answer in this site: http://www.obd-codes.com/trouble codes/generic/p0401-insufficient-exhaust-gas-recirculation-flow-egr.php EGR First off Your Honda is really an Isuzu Rodeo, but you already knew that. These have the GM electronic egr. if you have the 3.2 motor. The only way to fix it is to replace the egr valve.
Thanks for the feedback!

What would you like to do?

Service engine light on - code p0401 - EGR Sensor - 1999 Sable - Taurus - could be a build up of carbon Can you clean them or must they be replaced?

You can try cleaning it, but in general, most people have found that it needs to be replaced. Although it is probably too late for this particular user, I recently searched (MORE)

What would you like to do?

How do you fix GM error code P0401 on a 1997 acura TL without buying a EGR valve?

I was looking up the same thing and came across these answers: ... "very well be that the egr valve is coverd in carbon. The carbon is easy to clean with a wire brush if you r (MORE)

What would you like to do?

How do you fix the EGR valve associated with a check engine light error code P0401 on a 1999 Acura 3.2 TL?

It's not the valve. I've never worked on an acura. but it's not the valve. they rarely short out. check the passages, and the vacum pump. hopefully someone with acura experien (MORE)

EGR Valve Problems on Cars

Learn when EGR valves were first deployed on automobiles and why. Discover how these emission components work and the problems they can cause when they malfunction. (MORE)

Diagnosing Engine Misfire Codes

On OBD II vehicles from 1996 to present day, generic engine misfire codes can be set for a variety of reasons and produce codes in the P0300 range. Learn what causes these fai (MORE)

How to Pull Check Engine Light Codes

The illumination of a check engine light on the dash of an automobile is a fairly common occurrence. This article addresses how to pull check engine light codes from OBDI and (MORE)

Most Common Check Engine Light Problems

Discover why a check engine light comes on. Review two of the most common check engine light problems facing motorists on modern vehicles. Learn the difference between a nuisa (MORE)

Signs of Valve Train Problems

If you have ever said the words, I need a valve adjustment when referring to a car problem, this article is for you. See what can go wrong with engine valves and review a spec (MORE)

About the 2015 Honda Fit

The subcompact Honda Fit is all-new for 2015, a hatchback model that seats five. Its design is more aerodynamic and its engine is new and more efficient. (MORE)

What would you like to do?

How to fix error code P0401 on Honda Passport 2001?

EGR System, insufficient flow detected, maybe bad sensor?   Your sensor is more than likely fine. It is probably the air intake to the EGR located in the throttle body. Tak (MORE)

What would you like to do?

What is the cause of a P1401 obdII code in a 98 mercury sable durotec 24 valve after egr replacement and valve cleaning if the hose from the valve to the vacuum is clean?

It is the c-shaped port between your throttle body and air intake manifold. Remove the throttle body, buy some throttle body cleaner, and scrape it out (it is on the face of t (MORE)