MSefi.com read only forum (Jan.15,2018)

Hello.
Please help me with following:
Engine starts, running while afterstart enrichment is on, and stops immediately after ASE turns off.
After disabling ASE engine runs while warm-up enrichment is on, and stops immediately after wue turns off.
If set wue bins to 100% in all cells engine starts, runs for about 2-5 seconds and stops.

ECU MS-2 ver. 2.891
Sorry for my English.
Thank You.

That often means you're too lean.

We are using wide range EGO sensor with indicator - when engine warming up mixture is 12.5-13, even when WUE value is 101.
As soon as WUE becomes 100 engine stops.

Looking at the data log, you're losing the RPM before the engine physically stops. Try increasing the normal running next pulse tolerance.

Thank You very much, You are exactly right.