Pretty sure the 97 Honda CRV doesn't have an EGR valve. I have a service manual for the 97 and it's nowhere to be found. I think some Civics didn't have one either.
A 1997 Jeep does not have EGR
The heater in the CRV Honda is not working . How do I fix this
because the intake is probaly clogged up with carbon deposits not letting exhaust gasses back through the intake.
A 1997 5.2L doesn't have EGR.
A 1997 Ram does not have EGR
The 2002 Grand Vitara EGR valve is located on top of the engine. The EGR valve will be between the engine and the battery.
On the Head itself.
After unbolting the EGR valve, clean it with a carburetor spray. Allow it to dry completely before reinstalling the valve.
7.3L does not have EGR Valve.
97 Z28 camero 5.7 egr vavle located on engine
The 97 Honda VTec PCV valve should be on the valve cover. The valve is a plug-in type and just pulls free.
The cost of the EGR valve ranges, depending on where the part is bought from. It can cost anywhere from $58 to $100.