P0401 EGR Valve Port Cleaning
This is my DIY for clearing the CEL code P0401 (EGR Insufficient Flow) on a
98 Honda Prelude.
In cars with OBD2 if the EGR valve is restricted by carbon deposits it will
detect that and throw a CEL. To get rid of that CEL you must clean out the
carbon to allow flow.
After combustion occurs within the engine it creates Exhaust. Gas from the Exhaust straight from the engine is very bad for
the air. The EGR valve recaptures that Exhaust and runs it through the combustion
process again, which lowers the temperature of the fumes (Exhaust gas) and lowers the amount of pollution
exiting into the atmosphere.
If you don't fix it you won't pass SMOG in California. You may experience
rough idling and poor acceleration.
Get your "EGR port plugs" from Honda. They will have it.
Removing the injectors are important to allow clearance to the port plugs.
When you pull out the injectors you might as well clean them since they are
Slide hammers make pulling the port plugs out easily.
Drill with a bit the size of your tap. Drilling halfway through the port
plug to should be enough distance to fully grab the port with the slide
If after you clean your ports and valve the CEL has not been cleared, you
EGR valve maybe faulty and needs to be replaced.
Throttle Body Cleaning - Dirty Throttle Body Symptoms and Problems
http://www.TrustMyMechanic.com (visit my site for TONS of free auto repair
Throttle body cleaning. Does your car idle rough, does the engine seem
like it is trying to die when you are at a stop light, is the engine taking
a little longer to start than normal?
You might have a dirty throttle body and that is something you can repair
yourself. In this video we are cleaning the throttle body on a 2005 Ford
F150 pick up truck with a 4.6 V8 engine.
Using just a wire brush and some throttle body cleaner made by BG, or you
can use any throttle body cleaner made for throttle body service which is
available at your local auto parts store.
If you want to learn more about car maintenance and what you can do
yourself to help save money. Visit my site link at the top.
"Common Throttle Body Symptoms and Problems"
What are the most common complaints I see in my auto repair shop that are
related to a dirty throttle body?
1. Rough idle speed. We like to call this hunt and peck, like a chicken
does when it is looking for food. The engine is trying to keep a steady
idle speed but the carbon build up in the throttle body plates are not
allowing it. So the engine is hunting for a steady idle speed, which causes
the roughness you feel inside the vehicle.
2. Slower starts or extended starting periods. You might have to crank the
engine over much longer than you used to. The engine might start and die,
and you have to crank it again. These are pretty common complaints when
there is a dirty throttle body issue.
3. Dies at stops. The engine is having a hard time keeping the idle speed
high enough without dying. This complaint is worse with the air conditioner
on, since there is more load on the engine with the A/C compressor on. A
dirty throttle body will cause the engine to decrease the idle speed as the
vehicle comes to a complete stop, and will eventually die. Restarting can
take some time as in the extended crank complaint above.
This is a common complaint and the throttle body as well as the idle speed
control motor should be cleaned periodically as part of regular scheduled
I have more useful information on my website...for free, nothing to buy.
Also of interest.
throttle body service
how to clean throttle body
throttle body cleaning
what is a throttle body
throttle body symptoms
throttle body problems
throttle body cleaner
clean throttle body
E46 DIY #4 Replacing Intake Boots, Cleaning Throttle Body, ICV & P1189/88 Attempt #4
Well here's the Do It Yourself series for the 3 Series BMW E46! I Did this
to help other people because i was in their shoes and turned to youtube and
the internet when i need to get something done and youtube lack the videos
to really help me in certain areas...
Real OEM parts online for all BMW models: www.realoem.com
Intake Boot to MAF - 13541705209
Intake Boot to ICV - 13541435627
If you guys need help with a particular Do It Yourself, or anything... Drop
a comment below and i will do my best to help you out! And if it's worthy
enough? It will be in the upcoming video =)
Follow me on Twitter and get the updates/knowledge of me currently doing
videos before they are even edited - https://www.twitter.com/RedRaptorZ
How To Solve Honda Idle Problems - EricTheCarGuy
Visit me at: http://www.ericthecarguy.com/
Before posting questions about Honda idle problems please read this:
The viewers have chosen and this weeks video will be about solving Honda
idle problems. I'm really not surprised as I get a lot of questions and
requests about this very subject. Here are the links I promised in the
video that will help you address specific issues mentioned in the video.
How To Bleed a Cooling System
How to Check for Vacuum Leaks
Reading Check Engine Light Codes
Diagnosing an Overheat
Hopefully when your done checking all that stuff out you will have solved
your Honda's idle problem, if not leave a comment or send me a message and
I'll see what I can do just make sure you have tried all the stuff in the
videos first as that saves me from typing so much.
I also want to add my "Idle Speech" into the mix here:
There are a lot of things that can contribute to an idle issue, in fact in
the end it may still be there to some degree because of the nature of that
engine however here are some things to start with.
First start with a good tune up, use NGK or Nippon Denso plugs, don't
change the wires if they are OE, if they aren't OE you might consider NGK
wires as they are very good and less expensive then OE. A quality cap and
rotor should be good. A new air filter also helps.
Don't change the PCV valve, if you see an aftermarket PCV valve in there
put a Honda in, believe it or not I've seen idle issues caused by
aftermarket PCV valves, the OE's last just about forever so you can easily
justify the expense.
Next a good valve adjustment, this goes a long way to smooth out the idle
if done correctly, mess it up and things can get a lot worse though.
While you have the valve cover off check the timing belt tension, if you
feel a lot of slack this can cause the cam to 'chunk' as it spins causing a
rough idle. If you think the belt has been on there for some time then
you might consider changing it and resetting the tension properly, if it's
not ready for replacement you can reset the tension to take up the slack.
DO NOT adjust the idle screw under any circumstances, it is set at the
factory and that is the reason it was sealed in the first place. If you
find that the seal has been broken and you have a low idle and you have
done all of the above then you might turn the screw out a little to see if
that helps the idle but only enough to try and bring it back to where it
was before it was adjusted in the first place.
Last clean the screen in the Idle Air Control valve, this can get clogged
up with carbon over time and cause the flow through it to be restricted
which can cause idle issues.
If you still have a 'rough' idle after all of this THEN look to the engine
mounts as you want to be sure the engine is running correctly before you go
for those as the one in the back is a real pain to replace.
Click below and Stay Dirty
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee
against unauthorized modifications of this information, or improper use of
this information. EricTheCarGuy assumes no liability for property damage
or injury incurred as a result of any of the information contained in this
video. EricTheCarGuy recommends safe practices when working with power
tools, automotive lifts, lifting tools, jack stands, electrical equipment,
blunt instruments, chemicals, lubricants, or any other tools or equipment
seen or implied in this video. Due to factors beyond the control of
EricTheCarGuy, no information contained in this video shall create any
express or implied warranty or guarantee of any particular result. Any
injury, damage or loss that may result from improper use of these tools,
equipment, or the information contained in this video is the sole
responsibility of the user and not EricTheCarGuy.
Clear check engine light for less than 5 dollars
More Tutorials on my CHANNEL: http://www.youtube.com/user/moccina
*This video is an EXPERIMENT I wanted to try on my car, and is for
INFORMATIONAL purposes ONLY. This fix is for off-road use. The content
shown in this video is not intended to encourage emissions test cheating.
I enjoy the process of testing theory because you always learn something
new, regardless of the outcome.
Using a spark plug defouler kit, I install a "buffer" in between the
downstream oxygen sensor and the catalytic converter. Quite often,
frustrated car owners get the P0420 code for reasons other than a bad cat.
I have heard of people getting the code just because they removed the
converter and reinstalled it. It can also happen if you run your vehicle
out of gas etc... etc...
It is also common for car owners to get the P0420 code, replace the
converter, and both o2 sensors-- only to have the code come back after 1000
miles or so. This can be a very frustrating, time consuming and of
course-- expensive venture. Here is one way to resolve the issue. Good
luck and have fun!
Volvo Rough Idle Problems (ETM issues) - how to fix
If your Volvo has irregular idling or your car surges when slowing down, it
may be your ETM. This short video shows the symptoms, how to clean the
unit, and the results. Cleaning ETM's takes simple tools, off the shelf
cleaner, and about 1.5 hours. Sure beats a $400 cleaning job from the
dealer for a $1500 new unit. These instructions are for a 2001 S80.
Changing Idle Air Control and Throttle Position Sensor
Changing my IAC and TPS, hopefully she will run much better. The IAC (Idle
Air Control) motor/valve, allows air into the manifold while the truck is
idling, if it's stuck shut, then the truck will die at idle, which is what
it was doing. I also threw on a TPS (Throttle Position Sensor) because I
was there and the one on it was original. Sometimes it's good to replace
parts when they have a ton of miles on them just to eliminate issues later.
Cleaning a Ford Throttle Body Part One
This video is for user FPGT24, who asked the question regarding some rough
idle concerns on a Ford Explorer. Although my F-150 is a different
vehicle/engine combination, the procedure is basically the same.
SeaFoaming my Silverado
after taking apart my sticking throttle body to clean it I noticed how
dirty my intake was. Thought I would run some seafoam in there to see if
it would clean it up a bit. Plus you just gota love the smoke!
How To Fix A Car That Idles Poorly
Scotty Kilmer, mechanic for the last 42 years, show how you can fix your
car if it's idling poorly. Visit Scottykilmer.com for free answers to all
your car questions.
How to clean fuel injectors in your car.
Emmy Award Winning mechanic Scotty Kilmer shares his 40 plus years of
experience. In this video, Scotty shows how to clean the fuel injectors in
your car. Visit Scottykilmer.com for answers to all your car questions.
How to Clean the IACV- Idle Air Control Valve
How To: Locate and Clean Your IACV (Idle Air Control Valve)
This is on a 93 Honda Civic coupe.
This is what a car does when the valve gets too dirty.
Clean Engine Throttle Bore to repair idle and starting problems.
How to clean the throttle body bore and plate of carbon from expert auto
mechanics. Carbon build up can cause problem with the engine in your car or
truck. Problems include unstable idle, stalling or dying out, surging or
check engine light. It just takes a few minutes to do this simple repair.
Dealer Technicians from www.GreatAutoHelp.com show you how.