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Discussion Starter #1
Bmw 335i n54 2010

83,000 miles

Between 5000-6000 RPM car goes into limpmode throwing 30fe and 3100 code

30fe: turbocharger, charge air pressure to high, overboost
3100: boost pressure control, deactivation

Mods: downpipes and chargepipe everything else is stock no tune!!
Wastegate rattle too loud!! On low RPM


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Seriously? How about because it'll cause the symptoms you're currently experiencing?

In addition to overboost blowing out any parts of the intake system not prepared for it, the increased boost from the free-flowing downpipes FOR WHICH YOU ARE NOT TUNED causes excessively lean mixtures, leading to detonation in open loop, which will burn exhaust valves, crack ringlands, hole pistons, crush rod bearings, and bend connecting rods. Thereby destroying your engine and turning your BMW into a very expensive paperweight. Because you didn't feel like spending $150 on a tune. Best of luck.
 

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Discussion Starter #8
Seriously? How about because it'll cause the symptoms you're currently experiencing?

In addition to overboost blowing out any parts of the intake system not prepared for it, the increased boost from the free-flowing downpipes FOR WHICH YOU ARE NOT TUNED causes excessively lean mixtures, leading to detonation in open loop, which will burn exhaust valves, crack ringlands, hole pistons, crush rod bearings, and bend connecting rods. Thereby destroying your engine and turning your BMW into a very expensive paperweight. Because you didn't feel like spending $150 on a tune. Best of luck.
No man the ecu wont let boost to increase on stock map

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Discussion Starter #11
Bmw 335i n54 2010

83,000 miles

Between 5000-6000 RPM car goes into limpmode throwing 30fe and 3100 code

30fe: turbocharger, charge air pressure to high, overboost
3100: boost pressure control, deactivation

Mods: downpipes and chargepipe everything else is stock no tune!!
Wastegate rattle too loud!! On low RPM


Sent from my SM-G950F using Bimmerfest mobile app
Boost solenoid replaced all good

Sent from my SM-G950F using Bimmerfest mobile app
 
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