BMW Valvetronic Sensor Faults 2a67 and 2a63 Causing Stalling Misfires and Rough Running
This is a problem I have seen on many BMW's. This applies to all vehicles with valvetronic especially on the N46, N51, N52, and N52K engines. In this video I go over what to check on the N46 Engine and what the common cause of this problem is attributed to.
BMW Valvetronic operation on N42 engine (fault?)
This is how the electric motor turns the Valvetronic eccentric shaft on a
BMW N42 engine. The system has a fault, but I don't know yet what it is.
The engine doesn't start with Valvetronic activated. It starts only when I
disconnect the eccentric shaft sensor (near the oil cap). The behaviour in
the video seems somewhat erratic, but I'm not sure if the fault actually
manifests itself here. What do you think?
BMW Valvetronic Variable Valve Lift
BWM Valvetronic Electronic Valve Lift
Get the book and DVD here:
Valvetronic engines use a combination of hardware and programing to abolish
the need for a regular throttle mechanism.
Valvetronic varies the lift of the intake valves. Based on signals formerly
taken mechanically from the accelerator pedal position sensor, the stepper
motor changes the phase of the eccentric cam, modifying the action of the
intake valves.This system has a conventional intake cam, but it also uses a
secondary eccentric shaft with a series of levers and cam followers,
activated by an electronic stepper motor.
The Valvetronic engine replaces the function of the throttle body by using
infinitely variable intake valve lift. Valvetronic has its own computer
housed in a separate unit away from the engine management system, networked
through CAN network with the digital engine management system incorporating
a 40-megahertz, 32 or 64 bit computer.
Valvetronic reduces maintenance costs, lowers Exhaust emissions, improves cold start behavior,
and provides a smoother running engine. It also does not need specific
fuel grades or fuel qualities because of its fine atomization of fuel.
Because Valvetronic allows the engine to breathe ...
Get the whole story right here in this video... Enjoy...
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BMW 3 Series Eccentric Shaft Position Sensor Replacement e90
BMW 3 Series Eccentric Shaft Position Sensor Replacement. All of the photos
and instructions were taken directly from:
Valvetronic disabled by disconnecting eccentric shaft sensor. No error on
dash but on diagnose we can see valvetronic is put in limp mode home. Done
on Malaysian assembled E46 318i 2002 BMW N42
BMW 3 Series (E46) 1999-2005 - Exhaust camshaft position sensor testing P0369 - DIY Repair
Features BentleyPublishers' BMW 3 Series 1999-2005 Repair Manual (E46) -
How to test the Exhaust camshaft
position sensor on a 2001 - 2005 BMW 3 Series (E46) with an M54 engine. The
vehicle had a P0369 stored. For more information on Bentley Publishers line
of BMW technical manuals, visit http://www.bentleypublishers.com/
Thank you to our friends at Autologic for the use of the Autologic BMW scan
BMW 2008 328I Valve Cover Gasket
BMW 328I E90 How to replace the valve cover gasket. N52K engine.
Eccentric shaft sensor replacement.
For a no start when cold condition.
COBB Tuning - AskCOBB Episode 2 - BMW Misfire Diagnosis and Repair
The N54 powered BMWs respond amazingly well to tuning, but the increased
power has caused some owners to experience misfire issues. Trouble shooting
and repairing a BMW can seem like a daunting task with things like an
advanced electrical system, specialized tools, and intimidating engine
covers. But, diagnosing and repairing the typical misfire is fairly
straight forward, and COBB Tuning can show you how!
BMW 3 Series E90 Valve Cover And Eccentric Shaft Sensor DIY Fault Code 2a31 2a47
I show you how to remove and replace the valve cover and eccentric shaft
sensor specifically on a BMW 3 Series E90. This video is very comprehensive
and includes some GREAT TIPS AND TRICKS for the valve cover removal and
installation. This BMW would barely run and had a check engine light. The
fault codes where for the eccentric shaft sensor 2A31 DME valvetronic
eccentric shaft sensor guide and 2a47 valvetronic eccentric shaft sensor
plausibility. The sensor was completely failed which led to very poor
running. There was also oil in the sensor pins.
Removing the Valvetronic Motor
This is in response to a question on how to remove the VVT or valvetronic
motor on a BMW 1 series. This would be similar on any vehicle with the N52
engine. Removing the valvetronic motor on a 1 series with N52 Engine.
Bmw 3 серии (e90) Тест- драйв Б/У.Anton Avtoman.
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BMW TwinPower Turbo and Valvetronic.
BMW Group scores with four, six and eight cylinders at the 2012
International Engine of the Year Awards. A good opportunity to have a
closer look at a special BMW engine technology: BMW TwinPower turbo and more closer the VALVETRONIC technology.