from what i have been told you don't need to change the valve you just need to get it cleaned. It gets filled with carbon after a time. Try to get it done be for you go for the etest and you will pass. This will also save you a bit of money.
The EGR valve for a Honda EX 1991 is at the top of the engine. It is at the front, just to the left of center.
The 1989 Honda Civic is not equipped with an EGR valve.
An EGR valve can be cleaned. Remove the EGR valve, then flush it with carburetor cleaner. Allow the unit to dry then reinstall.
So, ... what is your question?
1) Unplug the electrical connector for the EGR valve lift sensor. 2) Remove the two nuts that secure the EGR valve and detach the valve. 3) Clean the mating surfaces of the EGR valve and adapter. 4) Install the EGR valve using a new gasket. Tighten the nuts securely. 5) Plug in the electrical connector. These instructions come from the Haynes repair manual for Honda Accord 1990-1993 which also has good illustrations.
take the EGR valve off and spray carb cleaner in the egr valve and in the port. This will some times work as it gets plugged up
Possibly a plugged EGR valve. and your all noobs.
If you have less than 80,000 on it read below. Occasional problems on this vehicle are failures of the Exhaust Gas Recirculation (EGR) Valve Passages and the EGR valve (3.0L V6 engine only). Honda has extended the warranty on problems related to the EGR System to 8 years or 80,000 miles.
You can change the 2005 Honda E GR valve by removing the vacuum hose from the valve. Remove the valve retaining screws. Reverse the process to install the new valve.
Right ontop of the starer. you can remove and clean but you probably are going to have to remove intake manifold and clean all the carbon. check engine on my 2000 Honda accord v6 came on. codes read not enough air flow, change egr valve. removed and it really wasnt dirty. Honda tech adviced to clean intake manifold. problem fixed.
2001 Honda CR-V DOES NOT have an EGR valve!
There is no EGR valve on a 2000 Honda CR-V. The emission system used in these vehicles did not require an EGR.