Use_intake_density_on_mixture breaks mixture and fuel flow

[MSFS 2020] Bug Reports Aircraft
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1

Greets,

as the title says, setting “use_intake_density_on_mixture = 1” breaks the mixture when boosting. As the wastegate closes(trubo speed) the mixture resets back to what it should be
Both tests done at ISA level full rich (0.098)

eg1: NA

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eg2: Turbo = 1, max_mp=40 and intake density = 1. setting the same 29.9"

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Same manifold pressure, with a massive cut to the mixture.
The bug seems to be connected to the turbo speed “wastegate”

eg3: Full power (40") and cutting the power. The mixture settles back after the turbo has spooled down.

When manually forcing a higher manifold pressure with xml this doesnt happpen.

2

additionally, the fuel flow var shows a fuel flow even the tanks are empty

3

Hello,

We are looking into this mixture change with boost and hope to have a fix some time during the SU15 beta cycle.

-Matt

1 Like
4

Hello all,

Both issues reported above (mixture leaning with high MAP when using use_intake_density_on_mixture; and fuel flow with a spinning engine even when fuel is unavailable when using use_volumetric_fuel_flow) will be addressed in the next build of SU15.

Thanks for the reports!
-Matt

1 Like
5

Hi again.

The mixture doesnt respond below 15°C
im on SU15b