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Emission Emission is offline
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Join Date: May 2002
Location: Newbury Park, CA
Posts: 4,206
Question re "Overboost Switch"

My engine has been cutting out on hard right turns... and then it runs normally when I straighten the car out again.

I think I may have found the problem. After poking around with a flashlight last night, I noticed the "overboost switch" wire had vibrated loose. The wire has a rubber housing, so it was kept in loose contact with the switch. I assume right turns pulled on the wire and it broke contact... and when I went straight contact was again made.

My questions:

Will the engine die if the overboost switch is disconnected?
What does the overboost switch kill (fuel or ignition)?
1986 - 930 Coupe / 2016 - BMW X5 xDrive35i / 2015 - Volkswagen Golf TDI 6MT / 2018 -Porsche 911 Carrera 7MT
Old 03-19-2008, 08:33 AM
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