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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Variable Valve Timing



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      11-14-2012, 03:50 PM   #1
TriX9zero
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Variable Valve Timing

During certain days when I start the car and drive off I experience poor throttle response and that vvt kick around 3-4k RPM is none existent - there's plenty of low-end torque though. The weird thing is that I have to restart the car twice and everything is back to normal. Happens randomly.

I'm thinking its the VANOS, maybe electrical - solenoids?
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      11-14-2012, 10:25 PM   #2
Volasko
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Does your car throw a check engine light (CEL) code? You vanos solenoids could be dirty and not actuating properly to advance or retard your timing. Usually when this happens you would throw a CEL code though. I had something similar and all I had to do was pull my vanos solenoids (super easy, search for DIY's) clean and swap them.
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      11-14-2012, 11:34 PM   #3
TriX9zero
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Thanks for the input. Sometimes it does throw a CEL when its starting up however, it dissapears very quickly. I am going to give the solenoids a good cleaning though. They might be dirty.
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