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DISCUSSION => Engine + Driveline => Topic started by: link1433 on April 29, 2008, 08:49:02 AM

Title: Air/Throttle Boot
Post by: link1433 on April 29, 2008, 08:49:02 AM

I had a question regarding the air boot that runs from the MAF to the throttle body.  I replaced this boot and noticed that it has two holes, one on the side and one beneath.  I check the vacuum diagram and noticed only one vacuum line running from it.  So my question is, what is the other hole for, where does it go. Thanks

Title: Air/Throttle Boot
Post by: swiss318is on April 29, 2008, 09:40:48 AM

yes, thats right, there are two holes.. one is unnecessary and dont go anywhere and you close it with a plug! this plug is included in the set if you buy the boot by your bmw dealer.

Title: thanks
Post by: link1433 on April 29, 2008, 02:22:22 PM

Thanks, its been awhile since I last had it put together.

Title: Air/Throttle Boot
Post by: wheelsIII on April 29, 2008, 05:08:58 PM

Thank you! Thank you! Thank you!

I've spent at least 12 hours trying to figure out where the !@#$%^& hole got connected to! I bought my new throttle boot from BavAuto and they didn't include the plug.

I assume that the vacuum side of the second 4-way connector isn't used either then? I ran the ICV connection directly to the other hole in the boot rather than through the 4-way. Hope the smog guy passes it.

Did I say thanks?  It's been 2 years since I starrted on the project (I have one of the few M42's with a rod through the block) and I kind of forgot where everything went.

Tom


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