I have an 88 that I'm trying to put back together. Have the intake manifold back on but seem to be missing a couple of parts that mount to the front. Have two open ports below the fuel line mounting bracket and the nipple where the hose runs up to the plenum. Any guesses as to what could be missing. Can't find anything in the service manual.

Thnaks

 

If the ports are pipe thread and are to the center of the manifold, one is for the coolant temp sensor and the other on my 86 is for the thermotime switch for the cold start injector. [8D]