Hi, I wonder if anyone has a clue why resetting the ECU the car performs a lot better. And passing some days it starts to loose power. If I reset the ECU again it performs better again. This is a very weird behavior for an 1990 E30 316i with no O2 sensor. I wonder if fuel trims are activated even with no O2 sensor.
Also when the car starts to loose power after a few days, if I loose tension on the AFM the car runs better again. But another few days it looses power again.
ECU/DME weird behavior.
Moderator: martauto
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blood69
- E30 Zone Newbie
- Posts: 54
- Joined: Sun Feb 18, 2018 11:00 pm
- Location: Funchal, Madeira Island