96 ES 300 has the CEL on and it reads EGR problem. I forget the actual code. I have removed the EGR Valve and cleaned all the ports that I thought would need to be cleaned and replaced, CEL back on again. Then I bought another EGR Valve off of a used wrecked ES 300 and the same thing happened. I was told that the EGR Valve on that car was good. So now I need you help in figuring out what I need to do to get this CEL off. I can't pass my emissions state inspection with it on. Is there a trick or cleaning method I am not doing? Please Help. Thanks.

 

Use the search function,it's there for a reason.Anyway,check the vacuum modulator.It's located beside Egr valve.Take it off {it's easy**and suck on the bottom pipe .If you get air coming out it's not good,it should hold vacuum.

 

I checked the search function and found very little on the subject. Can you explain this with more detail. Where exactly is the vacuum modulator? Thanks.

 

egramp.doc

Here is something to show you the egr mod

 

I will try this and let you know what the vacuum modulator does. How often do these go bad??? I have 130K on the miles.

 

Well,chances are that the modulator will say "bye bye" before Egr does.