Could a leaking intake manifold gasket cause a code 33? I feel like it's a vaccum leak because the car can't find idle after coming down from throttle while driving and it tries to die when you give it a little gas and idles fine in Park so I'm just confused

 

https://www.thirdgen.org/forums/tpi/...ll-1991-a.html

3.1l ?

 

Yes, 3.1l. I've already replaced the map and backprobed the wires to check it as well

 

I’d start looking for leaks with carb choke cleaner but have a fire extinguisher handy just in case. Iirc lots of hoses coming off throttle body connector on the 3.1

 

The only leaks I found doing that were around the egr tube but I fixed them and it still does the same thing