Feeling rich? One for the FI guys! Options

[Rod]

Hi all, it’s a FI diagnosis I’m after, please help.

1973 1.7L standard FI system.

When hot after a long run, I have a really rubbish tick-over and car wants to stall.

I thought it would be MPS as mine has already been opened by a PO, but it reads 94 ohms on the outer coils and 398ohms on the inner terminals. It seems to hold vacuum too (only tried sucking on it, don’t have a gauge) so can I rule that out??

I really want some further checks to do as it’s running so rich I can see smoke at a hot idle and it’s difficult getting it to pull away without bogging down (only when hot - it’s great when cold!!) So it’s a hot only problem I’m having.

Thanks for any help.

[dr914@autoatlanta.com]

if you cannot figure it out, you can call me and I will work you through it. If the car was running fine until you added the pertronix, that unit could have failed too, other than that, like previously stated:
head temp sensor
fuel pressure
manifold pressure sensor
leaking vacuum line going to the manifold pressure sensor
sticking cold start valve (rare)

other things:
bad valve adjust causing low compression
pertronix disfunctioning
bad gas