Replace or clean EGR?

That is why I sent the link, you mentioned possibly trying to do it
yourself. Our '99 Accord had this done at around 70,000 miles by the
dealer's service department.

 

That is why I sent the link, you mentioned possibly trying to do it
yourself. Our '99 Accord had this done at around 70,000 miles by the
dealer's service department.

 

cleaning the valve may help a little, but the core of the problem is the
carbon buildup in the manifold, and drilling /is/ the factory solution.

 

cleaning the valve may help a little, but the core of the problem is the
carbon buildup in the manifold, and drilling /is/ the factory solution.

 

cleaning the valve may help a little, but the core of the problem is the
carbon buildup in the manifold, and drilling /is/ the factory solution.

 

Before you start drilling, make sure the EGR valve or control unit isn't
having problems. Insufficient vacuum or a leaky diaphragm might produce
the same code. (I don't know that for sure!)

Basic troubleshooting is straightforward. Get one of those hand vacuum
pumps with a vac meter. Insert a 'T' fitting and monitor the the vacuum
being provided to the valve while the car is in motion. Then remove the
valve and use the pump to pull vac on the unit. Observe its motion, and
watch for leaks. Note how much vac is required to lift the valve, and
compare to the control box output. The system may not need full lift,
but the valve should be at least partially open when the car is running.

Also, check the rate of vacuum application. I chased my tail for
several weekends troubleshooting a constricted EGR solenoid passage.
The vac would arrive, and the valve would get opened, but not quickly
enough to keep the ECU happy.

If all this is working, then start thinking about drilling and reaming....

-Greg

 

Before you start drilling, make sure the EGR valve or control unit isn't
having problems. Insufficient vacuum or a leaky diaphragm might produce
the same code. (I don't know that for sure!)

Basic troubleshooting is straightforward. Get one of those hand vacuum
pumps with a vac meter. Insert a 'T' fitting and monitor the the vacuum
being provided to the valve while the car is in motion. Then remove the
valve and use the pump to pull vac on the unit. Observe its motion, and
watch for leaks. Note how much vac is required to lift the valve, and
compare to the control box output. The system may not need full lift,
but the valve should be at least partially open when the car is running.

Also, check the rate of vacuum application. I chased my tail for
several weekends troubleshooting a constricted EGR solenoid passage.
The vac would arrive, and the valve would get opened, but not quickly
enough to keep the ECU happy.

If all this is working, then start thinking about drilling and reaming....

-Greg

 

Before you start drilling, make sure the EGR valve or control unit isn't
having problems. Insufficient vacuum or a leaky diaphragm might produce
the same code. (I don't know that for sure!)

Basic troubleshooting is straightforward. Get one of those hand vacuum
pumps with a vac meter. Insert a 'T' fitting and monitor the the vacuum
being provided to the valve while the car is in motion. Then remove the
valve and use the pump to pull vac on the unit. Observe its motion, and
watch for leaks. Note how much vac is required to lift the valve, and
compare to the control box output. The system may not need full lift,
but the valve should be at least partially open when the car is running.

Also, check the rate of vacuum application. I chased my tail for
several weekends troubleshooting a constricted EGR solenoid passage.
The vac would arrive, and the valve would get opened, but not quickly
enough to keep the ECU happy.

If all this is working, then start thinking about drilling and reaming....

-Greg

 

Is the procedure essentially the same for a '98 Odyssey EX?

 

Is the procedure essentially the same for a '98 Odyssey EX?

 

Is the procedure essentially the same for a '98 Odyssey EX?

 

All that is great but the problem is a common and well documented problem on
that engine. Honda drilled the port out and installed a coated sleeve to
correct the problem. The only way to fix it is to remove the manifold and
clean out the port. He could probably get the kit with sleeve from a dealer
and have a dealer or mechanic install it if he does not have the ability to
do it....

 

All that is great but the problem is a common and well documented problem on
that engine. Honda drilled the port out and installed a coated sleeve to
correct the problem. The only way to fix it is to remove the manifold and
clean out the port. He could probably get the kit with sleeve from a dealer
and have a dealer or mechanic install it if he does not have the ability to
do it....

 

All that is great but the problem is a common and well documented problem on
that engine. Honda drilled the port out and installed a coated sleeve to
correct the problem. The only way to fix it is to remove the manifold and
clean out the port. He could probably get the kit with sleeve from a dealer
and have a dealer or mechanic install it if he does not have the ability to
do it....

 

Excuse me...

 

Excuse me...

 

Excuse me...

 

Thank you so much!

 

Thank you so much!

 

Thank you so much!