I have a 93 940 wagon with Regina ignition. 100K runs good except for a stalling issue.
If I let car warm up to operating temp, all is okay. If I don't let it warm up, the car will stall. Usually twice. Hard time restarting. No gas. It seems to be choking itself, like no gas. RMPs do not go right to zero on stall. Already replaced air control valve which cleaned up the idle. Replaced the airbox temp sensor. Cleaned throttle body. Didn't fix it.
I'm ready for help. Any ideas.
Thank you.

 

Welcome to the forum Subbuilder.

Did you change the fuel filter? This is commonly overlooked and will produce the same symtoms.

 

Thanks Eric.
Yes I did. Plugs, wires, filters, first and the IAC valve relieved my jumpy idle.
No codes. No check engine light.
Now I know more about the Regina ignition than I thought I ever would! May still not be enough though.
Seeing that it is consistantly stalling when I don't let it warm up and running fine when I do,
I think I have narrowed down the symptom somewhat.