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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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Old 04-22-2017, 07:58 PM
nydeuces nydeuces is offline
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Location: Westchester, New York
 
Join Date: Jul 2015
Posts: 177
Mein Auto: 2008 335i Sedan Automatic
Engine Malfunction at WOT

Full bolt on (minus fmic) with JB4 and MHD. Just replaced turbos, spark plugs, ignition coils, walnut blast, inlet, vacuum lines, RB pcv valve and vent hose, lpfp sensor and chargepipe with bov.

Ran into this issue before the upgrades as well. It doesnt always happen, I would say 4-6 out of 10 times. When I go WOT the CEL and engine malfunction light pop up and the car goes into limp mode. however, when i clear the code with JB4, everything is fine and power is restored. i dont have to stop or turn the car off and on.

any ideas? im thinking it could be my O2 sensors, possibly my fuel injectors or LPFP.


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2008 BMW 335i Sedan (Sport Package). Black Dakota Leather (Interior). Sparkling Graphite Metallic (Exterior). VRSF Catless Downpipes, Vanguard Catted Exhaust, COBB Charge Pipe (not installed), aFe Intake Scoop, Injen Cold Air Intake, Carbon Fiber Roundels & Badges, LED Interior Lights. New York Native.
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  #2  
Old 04-22-2017, 08:20 PM
CALWATERBOY DUE's Avatar
CALWATERBOY DUE CALWATERBOY DUE is offline
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Location: Fog City, California
 
Join Date: May 2014
Posts: 7,836
Mein Auto: 09 E93 335i somewhat mod
Quote:
Originally Posted by nydeuces View Post
Full bolt on (minus fmic) with JB4 and MHD. Just replaced turbos, spark plugs, ignition coils, walnut blast, inlet, vacuum lines, RB pcv valve and vent hose, lpfp sensor and chargepipe with bov.

Ran into this issue before the upgrades as well. It doesnt always happen, I would say 4-6 out of 10 times. When I go WOT the CEL and engine malfunction light pop up and the car goes into limp mode. however, when i clear the code with JB4, everything is fine and power is restored. i dont have to stop or turn the car off and on.

Similar - limp mode with power - codes read: fuel pressure switch signal bad.

But on inspection today....[here]

You prob installed an aluminum charge pipe. Still....better hafa look!
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Old 04-22-2017, 09:32 PM
nydeuces nydeuces is offline
Officially Welcomed to the 'Fest
Location: Westchester, New York
 
Join Date: Jul 2015
Posts: 177
Mein Auto: 2008 335i Sedan Automatic
Engine Malfunction at WOT

Quote:
Originally Posted by CALWATERBOY DUE View Post
Similar - limp mode with power - codes read: fuel pressure switch signal bad.

But on inspection today....[here]

You prob installed an aluminum charge pipe. Still....better hafa look!


thanks, installed a cobb aluminum charge pipe fyi

gonna take a look at the switch signal and make sure its connected properly. my stock one was bent and not even plugged in fully


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2008 BMW 335i Sedan (Sport Package). Black Dakota Leather (Interior). Sparkling Graphite Metallic (Exterior). VRSF Catless Downpipes, Vanguard Catted Exhaust, COBB Charge Pipe (not installed), aFe Intake Scoop, Injen Cold Air Intake, Carbon Fiber Roundels & Badges, LED Interior Lights. New York Native.

Last edited by nydeuces; 04-22-2017 at 09:40 PM.
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