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      05-03-2013, 03:46 AM   #75
nicktyler
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Drives: 335i (sadly gone)
Join Date: Jan 2012
Location: Essex

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Quote:
Originally Posted by doughboy View Post
No, that main plastic line is also the brake servo vacuum, so you'll have no brakes with it unplugged!

For turbo testing its eaiser to pull the small rubber vacuum lines off the top on the two vacuum canisters on the drivers side.

This will have the same effect but not effect the brakes.

Again, with the engine stopped if you get a 'hissssssss' for a few seconds then you don't have too many leaks.

To test post-solenoid vacuum, you need a vacuum gauge and Phil200tdi is the man for a DIY on that one!
I just tested everything as stated (cap and canisters) and it all seems ok. I get no rattle on cold start and perfectly silent on idle, there is almost no rattle while revving in neutral. No codes, no loss of power, the car drives brilliant but...

The rattle is only on part throttle when as described the gates must be slightly open to stop boost building any further due to the small throttle input. I think it must just be the effect of the catless downpipes. I really think I'm going to just buy an induction kit to drown it out.

I should start a new thread but which one of these 2:

Simota carbon intake

AFE stage 2
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