i go to ebay com. looked for egr solenoid.i see that acdelco sells them. acdelco has a list of compatability. so i looked at list. saw that its compatible whit many gm cars of around that time. so i go to junk yard, see a 94 lt1. took the egr solenoid off. then i see a 89 rs , took out the egr solenoid just incase the 94 lt1s solenoid does not work. i noticed that both were realy alike. except of how to mount them. i go home thinking that finnaly, im going to have my car running like a champ. i get home took out my old one. and it looks completly different. from the design to the connection.







this is the original one.....

and these are the 89 rs one...

 

how does the original vaccum connections go? since i cant fit them