Hello everyone I have a 1999 honda accord ex 2.3 liter engine and my check engine just came on. I took it to my local auto part store to check the codes on got these two codes. What I want to know is where is the sensor located? Any help would be appreciated.

P0450
Evaporative Emission Control System Pressure Sensor
Malfunction

P0453
Evaporative Emission Control System Pressure Sensor
High Input

 

Ignore that post.

I misread the first post.

 

The EGR valve is brand new. Is there something else that might be the problem ?

 

P0453 is for the fuel tank pressure sensor (high input). I don't see how the EGR could make that happen.

 

So, I would have to remove the gas tank to reach the sensor?

 

I no longer own the '98 so I don't have that Helm book. Somehow I think the sensor is attached to the EVAP canister, underneath the car below the left-rear seat.

edit...
OK, I guess it's #36 here. That still doesn't tell me how difficult it is to get at it.

 

Ok I'm gonna check it out today. Thanks for your help..