It's a relatively simple system of electronic engine controls as per the diagram below:
Likewise, the vacuum hose layout is straightforward - the resistances are marked on the various solenoids:
I'm going to include the likely causes for
rough idle or engine stalls after warm-up as it more closely matches the symptoms you described.
1. Idle air-speed control system malfunction
2. A/F mixture too lean (air leak, low fuel pressure,
PCV valve stuck open)
3. A/F mixture too rich (coolant temp correction - thermosensor)
4. Incorrect ignition timing.
Most of these require a diagnostic tester to check but you can check some of them manually.
The water thermosensor can be checked easily by disconnecting it to see if the warm idle improves.
Specs wise:
Fuel system pressure should be 34-40 PSI and it can be measured with an in-line gauge after the fuel filter.
Timing 16 deg BTDC +/- 1 deg
Cheers
Russ