(L-REAR) ECM Temp Sensor and (R-FRONT) a sort of temperature sensitive vacuum valve, I believe for the canister or PCV... one of the two. It's been a while since I've had either on my car.

I'm ditching the ECM so I guess I'll be picking up a neck with no ports on it then. Just been trying to figure out what all needs to be hooked up to get going on this.

http://i121.photobucket.com/albums/o219/ernestmayhand/Caprice%20resto/011motortrans.jpg

http://i121.photobucket.com/albums/o219/ernestmayhand/Caprice%20resto/031.jpg

http://i121.photobucket.com/albums/o219/ernestmayhand/Caprice%20resto/waterneck.jpg



the left one is engine temp the right is i believe EGR. when engine cold no EGR valve should open . on temperature rise.......vacuum is allowed to open egr......through this valve......

buy brass water pipe plugs at your local hardware/plumbing store to plug those off

paint it all black

done and cheap and easy

i do this all the time on these

good luck