Stalling intermittently M3

[Todd Black 88]

My car is intermittenetly stalling on me. It is presently at Parkshore for some work so they are goin to look into it while its there.

History.
Last year it would intermittently stall after coming back to an idle from a
drive. It would not do it often, but would do it. When it stalled, it would not
start again right away but if you wait 2-3min it would restart and idle/run fine. I went to take it to aircare/smog this year and it died in the line. It restarted and for the first time, it died under load at 50km/hr on the rollers at air care/smog.

Things i know.
Coil, wires,cap and rotor are new.(cap and rotor are the volvo replacements though)
Both fuel pumps are new, fuel pressure holds at 3bar fine, fuel filter new
Car does not have an afm, it has a Miller MAF conversion on it but its been on for 3-4yrs.
Main relay and injector relay new
Plugs new

Any ideas folks?
I need it to run as its to nice out to park it

[wagonizzle]

Coolant temp sensor health, or perhaps TPS out of spec? Check engine grounds for corrosion? I know it's not an m20 (which is what I know)... good luck

[Todd Black 88]

Both tps and coolant temp sensor 1500miles old (i know could still be it) and the engine has a rediculous amount of grounds on it from PO. Loop from every acc to groud in the engine bay.

[Todd Black 88]

Was a bad maf sensor in my gen 1 Miller Maf. New gen 3 maf in and loving it.

[M-technik-3]

Evap purge valve still in place? If so this could be culprit. It was the issue with my car. They are NLA and not necessary according to a fellow S14 expert.

Did not notice you found the issue.

[delphini]

13 button obc ????