sorting thru some issues and decided to start with cap and rotor, ** updated to 11/20 - 3 issues causing 3 overlapping problems- resolved Options

[DRPHIL914]

I have not seen scratches like this before in a cap.; bad rotor?

- see the last post-
1 bad CHT
2. bad TPS
3. bad f.i. injector trigger points plate.

NOT MPS,
NOT cap, rotor(although i did replace these too)

[r_towle]

So, a stock motor should not need any adjustment on the MPS.
If it's running lean, it's either a vacuum leak or your timing is to advanced.
You could also have issues with the TPS not being installed correctly and setup to be on the correct idle circuit when at idle.

If the CHT is unplugged or that wiring is compromised, the car won't start.

One thing to consider, and many of us have had to deal with this...
The old brittle FI wiring harness will be darn near impossible to rule out until you test every circuit with an ohm meter.
Pull off the main plug from the ECU and ohm out each wire.....
These old wiring harnesses will give you all sorts of issues, and they change each time you do anything new.

Just touching the harness to install things can create a break.
Rich

[DRPHIL914]

So, a stock motor should not need any adjustment on the MPS.
If it's running lean, it's either a vacuum leak or your timing is to advanced.
You could also have issues with the TPS not being installed correctly and setup to be on the correct idle circuit when at idle.

If the CHT is unplugged or that wiring is compromised, the car won't start.

One thing to consider, and many of us have had to deal with this...
The old brittle FI wiring harness will be darn near impossible to rule out until you test every circuit with an ohm meter.
Pull off the main plug from the ECU and ohm out each wire.....
These old wiring harnesses will give you all sorts of issues, and they change each time you do anything new.

Just touching the harness to install things can create a break.
Rich

Rich ,
i appreciate the input, - i should have included more info-
the wiring harness was a complete new replacement FI harness and ignition harness from Jeff Bowlsby last year so unless a connector came loose we can eliminate that as the issue.
- i have beendown that road with vac leaks, and thats not it here now, every hose seal etc was replaced last year, and had been running pretty good, but the wierd idle issue was not a up and down constant surge like you get wiht vac leaks - it would run fine but after idling for a while out of no where i would get a sudden drop in rpm, almost die, then rev it a bit and it would level out- seemed only to be when hot- so i replaced the cht(because with in line resistor the issue got better)-it was llike a hot start thing -
- MPS_ i have 2, bought second hand- the original one is long gone- when i bought the car it would not run due to a shot MPS(previous owner had it mounted up side down and left it out- it had water in it!, ordered a rebuild one from ecklers- that one went bad fast, replaced again, - then bought a box of cores and found 2 with good inners but had been messed with, - sent them to a friend that has an LCR meter and was able to reset them to factory specs, have the proper curve and re-sealed them. They both are 043's and are leak free. - but at factory spec they are still too lean, - so they did require a bit of richening out across the board-
and the one in there now - on saturday, had me running @ 12.5 across the board, .
- from here it seems like its not either of those 3 issues regarding the rough start th/ missing this morning.

phil