 335i Engine Reduced N54 FIXED [Part 8]The issue was a busted vacuum line leading from the boost solenoid to the rear turbo wastegate. It had become stiff and brittle and had broken out of view. The line itself looks great from the boost solenoid back, but had broken just before the wastegate nipple.
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10/26/2020
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335i Engine Reduced N54 [Part 7] I have no idea what the issue is...
- [New] Replaced Vacuum Lines from canister to Vacuum Hose
- [New] Replaced Vacuum Line from Boost Solenoid to front Turbo
- Replaced both boost solenoids
- Replaced Vacuum Hose (leading from block brake booster) Realized drastic improvement in acceleration
- Replaced used updated HPFP w/ 29k miles (new since part 3)
- Replaced Crankcase Vent Hose
- Added Oil Catch Can
- VRSF Inlets
- Vargas OE Replacement w/ Upgraded Wastegate Actuator
- Custom Valved Exhaust Turbos
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10/22/2020
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335i Engine Reduced N54 [Part 6] I have no idea what the issue is...
- Replaced both boost solenoids
- Replaced Vacuum Hose (leading from block brake booster) Realized drastic improvement in acceleration
- Replaced used updated HPFP w/ 29k miles (new since part 3)
- Replaced Crankcase Vent Hose
- Added Oil Catch Can
- VRSF Inlets
- Vargas OE Replacement w/ Upgraded Wastegate Actuator
- Custom Valved Exhaust Turbos
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10/16/2020
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335i Engine Reduced N54 [Part 5] I believe a boost solenoid is now the issue
- Re-flashed Stock Tune (was stock before)
- Replaced Vacuum Hose (leading from block brake booster) Realized drastic improvement in acceleration
- Replaced used updated HPFP w/ 29k miles (new since part 3)
- Replaced Crankcase Vent Hose
- Added Oil Catch Can
- VRSF Inlets
- Vargas OE Replacement w/ Upgraded Wastegate Actuator
- Custom Valved Exhaust Turbos
DME Codes:
2AAF - DME: Fuel pump, plausibility.
2DED - DME: Power management, closed-circuit current violation.
2F6C - DME: Exhaust-gas flap, activation.
30FF - DME: Turbocharger, charge-air pressure too low.
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10/13/2020
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335i Engine Reduced N54 [Part 4] - Re-flashed Stock Tune (was stock before)
- Replaced Vacuum Hose (leading from block brake booster) Realized drastic improvement in acceleration
- Replaced used updated HPFP w/ 29k miles (new since part 3)
- VRSF Inlets
- Vargas OE Replacement w/ Upgraded Wastegate Actuator
- Custom Valved Exhaust Turbos have not been chirping on decel and acel like frogs by a creek, but rather have been rattling less too, leads me to believe it may be boost solenoids.
DME Codes:
2AAF - DME: Fuel pump, plausibility.
2DED - DME: Power management, closed-circuit current violation.
2F6C - DME: Exhaust-gas flap, activation.
30FF - DME: Turbocharger, charge-air pressure too low.
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10/07/2020
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