[n55steven]

Hey there, 2015 BMW 435i

Catless downpipe, chargepipe, bm3 stage 1, super sport springs.

I've been having some shadow codes that won't seem to go away. Nothing ever appears on the dash as a CEL and the only symptoms I have are an occasional lurch under 80% throttle. Any help is appreciated.

190302 Tank ventilation and purge system, fine leak; leakage greater than 0.5mm
190F08 Tank ventilation system: Malfunction
118001 Mixture control: mixture too lean
11CF30 Mixture Control: Group error
118401 Mixture Control: mixture too lean, large deviation.
104B01 Absolute pressure sensor: intake manifold: group error
101F01 Throttle valve angle - absolute pressure intake manifold, comparison: pressure too high
1BC112 Zero gear sensor: short circuit to positive.

[Boznien]

Originally Posted by n55steven

Hey there, 2015 BMW 435i

190302 Tank ventilation and purge system, fine leak; leakage greater than 0.5mm
190F08 Tank ventilation system: Malfunction
118001 Mixture control: mixture too lean
11CF30 Mixture Control: Group error
118401 Mixture Control: mixture too lean, large deviation.
104B01 Absolute pressure sensor: intake manifold: group error.

Based off your codes, I would imagine you have a bad tank vent valve. As for the absolute pressor sensor, I've seen forum posts that another member replaced his TMAP sensor. I would recommend try cleaning your MAF sensor first and see if that helps get rid of some these codes. They all seem to be 'air' related.

(not a mechanic/tech, just someone who has dealt with this stuff before and checks forums)

Hope this helps!