Not sure on EGR type. Here is a picture. As for O2 sensor. It has never been changed, because I don't know where it is on this motor. What does it look like? Sorry for being stupid, but my race car motors don't have such things as EGR or O2 sensors. Race cars are all I ever worked on. There is an electrical thingamabob just ahead of the EGR valve on the left side of the vortec manifold, but it is not connected to the EGR in any way. It is connected to a canister mounted on the radiator frame via rubber hose. Would this possibly be the O2 sensor? It looks like 2nd pic.
Last edited by jaw22w; 01-28-2013 at 02:11 PM.