ricekikr

What parameters are needed for the AEB 1.8t go into open loop.

I know that at 2650 and below @WOT it's still in closed loop.

What makes it go to open loop? MAF reading?

600whpA4

Throttle position. IIRC it should go into open loop once you go past 85% throttle.

ricekikr

I was also under the impression that when @WOT its gona be in open-loop, but mine doesn't go into open loop@wot when not in boost. I only noticed this when I drove around for a while then noticed my afr at redline was around 13.5. Then checked the trims and it was -10%.

Anyways I was able to lower when it goes into open loop@wot to 1700rpm by increasing maf voltage. I could probably make it go lower.

Background.
I just installed a 50trim and using a AEM FIC to tune it. Open loop part was easy, the close-loop part is whats taking up my time. Specially when decel to idle, engine just quits. It would be a lot easier if I messed with the o2 voltage, but I want to keep the closed-loop system for day-to-day.

50trim
630cc siemens
AEM F/IC.