Have any of you guys with a 90-92 egr ever replaced this yourself? If so, can you give me some pointers. I took my car to a mechanic and they were going to charge me 600 dollars to replace mine! It doesn't look like it is that hard. Please can someone help me!

 

The problem is the egr vavle is under the plenum. You have to take the plenum completely off and then it is still a pain as one of the bolts hides nicely underneath the top of the egr valve. I did my own, but it took me a while. You can do it with a set of torx bits for the plenum bolts and a metric socket and crowsfoot set. Take your time, go slow especially aroung the runners so you don't damage them.