I finally found a picture of the hose that has to plugged when deleting the EGR and warming plate, thermal switch or something like that.

It's the yellow circle in my picture and from what I remember it's ported vacuum, before the butterfly. Anyhow just an FYI thing I said I'd do so here it is.

My general thoughts on the big picture is that it's your typical fuel injected Z that has been sitting for 30 years.

Vacuum leaks (small ones all over the place)
Dry-rotted leaky intake air ducting
Corroded dirty connectors
Questionable previous repair workmanship
Fuel pressure problems
TPS adjustment issues
Ignition timing issues
AFM that has been adjusted by a PO
Maybe even some common issues like having the temp sensor and thermotime swapped

Add to that, a list of aftermarket things that have been put into the car over the course of it's history:

Injectors of unknown flow rate probably replaced at some point
Aftermarket coil that may or may not need a ballast resistor
Aftermarket ignition box that may or may not be wired correctly

You know... The typical Z.

Work on one layer at a time. Like an onion.

22 hours ago, siteunseen said:

I finally found a picture of the hose that has to plugged when deleting the EGR and warming plate, thermal switch or something like that.

It's the yellow circle in my picture and from what I remember it's ported vacuum, before the butterfly. Anyhow just an FYI thing I said I'd do so here it is.

Hey thanks! I have a vacuum line over it, but it seems kind of loose. May be something to check out.

7 hours ago, Captain Obvious said:

My general thoughts on the big picture is that it's your typical fuel injected Z that has been sitting for 30 years.

Vacuum leaks (small ones all over the place)
Dry-rotted leaky intake air ducting
Corroded dirty connectors
Questionable previous repair workmanship
Fuel pressure problems
TPS adjustment issues
Ignition timing issues
AFM that has been adjusted by a PO
Maybe even some common issues like having the temp sensor and thermotime swapped

Add to that, a list of aftermarket things that have been put into the car over the course of it's history:

Injectors of unknown flow rate probably replaced at some point
Aftermarket coil that may or may not need a ballast resistor
Aftermarket ignition box that may or may not be wired correctly

You know... The typical Z.

Work on one layer at a time. Like an onion.

Exaclty, a big confusing onion, that makes your eyes water the further you peel away at it.😁 

 

These are all great things, I'm definitely going to check into. I am going to make a dedicated post about this problem, and maybe you could help me out there! 

Haha!! The eyes burning is from your onion running so rich. Happens to lots of them. 

I'll head over to the other post and see what I can do.