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Syncing Throttle bodies, troubles..

Old 09-05-2009, 10:26 PM
Junior Member
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Join Date: Sep 2009
Posts: 1
Default Syncing Throttle bodies, troubles..

Trying to sync the throttle bodies on my 04 F4i.

I pulled the 4 lines from the Map sensor 5-way valve. I plugged the two small and one big vacuum hose that connects to the air box. The only MIL singnal it's giving me is for the Map sensor. I read it didn't matter for that sensor.

Anyway, my problem is that my vacuum gauges are not changing. I'll turn the nut either which way, but the needle stays the same.

Been trying to figure this out for hours now and I'm hating life.
Old 09-06-2009, 06:11 PM
jonld's Avatar
Senior Member
Join Date: Mar 2005
Posts: 647

wrong connections. the sync vac lines are the 2 outside cylinders which are plugged to the airbox, and the 2 that connect to the 3 way to the FPR. The map sensor has to be plugged up or it will not run right and will throw a MIL.
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