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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Charge pipe, sai?



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      07-27-2013, 05:50 PM   #1
TT-Tom
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Charge pipe, sai?

I just bought a 135i, its an '08, im looking at the charge pipe and it appears to have a hose between the diverter valves. It leads to what looks like an sai pump... I'm a little thrown back, as i have not seen this on any n54 ive worked on. Does anyone know the impedance of the pump if i need to jump the leads with a resistor, or whats the usual approach to this thing? Thanks for any help or advice.
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      07-27-2013, 06:25 PM   #2
SfValley335i
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Quote:
Originally Posted by TT-Tom View Post
I just bought a 135i, its an '08, im looking at the charge pipe and it appears to have a hose between the diverter valves. It leads to what looks like an sai pump... I'm a little thrown back, as i have not seen this on any n54 ive worked on. Does anyone know the impedance of the pump if i need to jump the leads with a resistor, or whats the usual approach to this thing? Thanks for any help or advice.

Thats just a resonator type device not a sai pump. Not an electrical part.
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      07-27-2013, 07:35 PM   #3
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Quote:
Originally Posted by SfValley335i View Post
Thats just a resonator type device not a sai pump. Not an electrical part.
Hit it on the head. It's a resonator for the DV's.

OP, it will only be found on 1 series N54's.
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      07-27-2013, 10:32 PM   #4
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Quote:
Originally Posted by SfValley335i View Post
Thats just a resonator type device not a sai pump. Not an electrical part.
Quote:
Originally Posted by E90Company View Post
Hit it on the head. It's a resonator for the DV's.

OP, it will only be found on 1 series N54's.
O thank god, I glanced at it and got pissed, reminded me of my vw days
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