[TobyB]

Part of the evap is the test pump cycle- it only triggers every other time.

And there are minimum drive time constraints, too. I finally found it in INPA
and now run it manually.

Frustratingly, finding a LEAK in that system is even harder.

Narrowband or wideband o2's?
I would be asking BMWscanner what it's seeing for o2 sensor input voltage,
and then cross check against INPA- the car doesn't check heater supply voltage,
for some odd reason, so it's probably grumpy about the signal it's getting back from the sensor.

t