So I picked up a 92 rs (25th anniversary) 5.0 305 rbi and have been trying to get it running smooth so far I have done tons and got it running but not quite smooth I noticed one of the vac hoses (passenger side far left) coming off my throttle body is plugged. I cant seem to find where it goes any help would be great car seems to stumble on highway all of a sudden (had timing seal redone it was leaking)
I have done
plugs, wires, rotor, dist cap, new battery, recent oil change, new coil, temp sending unit, new 02 sensor, pcv, air filter, replaced several vac lines, oil pressure sensor, oil filter fuel pump fuel filter, new radiator, water pump, thermostat

I am plaining to check the IAC on thursday and I just bought a throttle body rebuild kit and a new fuel pressure regulator to get those out of the way. if anyone else has any recommendations please throw them my way!! I love this car but its driving me nuts not slowly either!!!!!

 

I'm going to need a pic to determine what's what

 

Which port is blocked? EGR/EDV?

 

what does EDV mean?

 

IRC EDV stands for exhaust dilution valve. A fancy name for AIR pump and its associated plumbing.

//RF

 

oh okay i have never seen that name....thanks for the info RF

 

RFmaster you are the master lol. when I picked my 92 Camaro up had the same thing, EDV port was left open, wasn't even plugged, but my AIR system was half tooken off. never could figure out what that port was for, so tyvm.